Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds

Yu-bai ZHANG; Yan JI

doi:10.37188/CJLCD.2021-0309

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Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds

Frontier Applications | 更新时间：2022-02-28

- Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds
- Chinese Journal of Liquid Crystals and Displays Vol. 37, Issue 2, Pages: 199-216(2022)
- 作者机构：
  
  1.中国石化石油化工科学研究院, 北京 100083
  2.清华大学化学系, 生命有机磷化学及化学生物学教育部重点实验室, 北京 100084
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51722303);National Natural Science Foundation of China(21674057)
- DOI：10.37188/CJLCD.2021-0309
  CLC： O753.2
- Received：30 November 2021，
  
  Revised：16 December 2021，
  
  Published：2022-02
- 稿件说明：
移动端阅览
Yu-bai ZHANG, Yan JI. Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds[J]. Chinese journal of liquid crystals and displays, 2022, 37(2): 199-216.
DOI：

Yu-bai ZHANG, Yan JI. Research progress in processing methods of reversible three-dimensional structures of liquid-crystalline elastomers based on dynamic covalent bonds[J]. Chinese journal of liquid crystals and displays, 2022, 37(2): 199-216. DOI： 10.37188/CJLCD.2021-0309.

摘要

液晶弹性体是一类在外界刺激（如热、光、电、磁等）下能够产生宏观可逆形变的智能材料。液晶弹性体必须经过取向后才能够展现宏观可逆形变性能。动态共价键在一定的条件下可以发生可逆断裂与再生成，能够改变传统共价交联网络的拓扑结构，因此可被用于液晶弹性体的取向中。液晶弹性体可构筑具有一定形状、且在外界刺激下能够产生可逆形变的智能三维结构，在生物医药、组织工程、航空航天以及柔性机器人等多种领域具有广阔的应用前景。基于动态共价键取向法，对液晶弹性体进行三维空间取向或对液晶弹性体进行组装，有助于提高液晶弹性体可逆三维结构的复杂性，并丰富其形变模式。本文对基于动态共价键的液晶弹性体可逆三维结构的加工方法进行综述，并对该领域的挑战和机遇进行分析。

Abstract

Liquid-crystalline elastomers (LCEs) are a type of smart materials that can produce macroscopic reversible deformation under external stimuli (such as heat

light

electricity

magnetism

etc.). Only LCEs that are aligned can exhibit macroscopic reversible deformation. Dynamic covalent bonds can be reversibly broken and regenerated under certain conditions

which can change the topological structure of traditional covalent cross-linked networks. Introducing dynamic covalent bonds into LCEs enables a new strategy to align the material. Liquid-crystalline elastomer reversible three-dimensional structures have certain three-dimensional shapes and can produce reversible deformation under external stimuli

which can be used in biomedicine

tissue engineering

aerospace

and flexible robots. In order to obtain liquid-crystalline elastomer reversible three-dimensional structures with more complex shapes and multiple deformation modes

the liquid-crystalline elastomers can be three-dimensionally aligned or assembled based on the orientation method of dynamic covalent bonds. This article reviews the processing methods of the liquid-crystalline elastomer reversible three-dimensional structures based on dynamic covalent bonds

and analyzes the challenges and opportunities in this field.

关键词

Keywords

references

D MISTRY , N A TRAUGUTT , K YU , 等 . Processing and reprocessing liquid crystal elastomer actuators . Journal of Applied Physics , 2021 . 129 ( 13 ): 130901 DOI: 10.1063/5.0044533 http://doi.org/10.1063/5.0044533 .

K M HERBERT , H E FOWLER , J M MCCRACKEN , 等 . Synthesis and alignment of liquid crystalline elastomers . Nature Reviews Materials , 2021 . DOI: 10.1038/s41578-021-00359-z http://doi.org/10.1038/s41578-021-00359-z .

M O SAED , A GABLIER , E M TERENTJEV . Exchangeable liquid crystalline elastomers and their applications . Chemical Reviews , 2021 . DOI: 10.1021/acs.chemrev.0c01057 http://doi.org/10.1021/acs.chemrev.0c01057 .

T UBE . Development of novel network structures in crosslinked liquid-crystalline polymers . Polymer Journal , 2019 . 51 ( 10 ): 983 - 988 . DOI: 10.1038/s41428-019-0224-1 http://doi.org/10.1038/s41428-019-0224-1 .

R S KULARATNE , H KIM , J M BOOTHBY , 等 . Liquid crystal elastomer actuators: synthesis, alignment, and applications . Journal of Polymer Science, Part B: Polymer Physics , 2017 . 55 ( 5 ): 395 - 411 . DOI: 10.1002/polb.24287 http://doi.org/10.1002/polb.24287 .

T J WHITE , D J BROER . Programmable and adaptive mechanics with liquid crystal polymer networks and elastomers . Nature Materials , 2015 . 14 ( 11 ): 1087 - 1098 . DOI: 10.1038/nmat4433 http://doi.org/10.1038/nmat4433 .

H R JIANG , C S LI , X Z HUANG . Actuators based on liquid crystalline elastomer materials . Nanoscale , 2013 . 5 ( 12 ): 5225 - 5240 . DOI: 10.1039/c3nr00037k http://doi.org/10.1039/c3nr00037k .

C OHM , M BREHMER , R ZENTEL . Liquid crystalline elastomers as actuators and sensors . Advanced Materials , 2010 . 22 ( 31 ): 3366 - 3387 . DOI: 10.1002/adma.200904059 http://doi.org/10.1002/adma.200904059 .

Y L YU , T IKEDA . Soft actuators based on liquid-crystalline elastomers . Angewandte Chemie International Edition , 2006 . 45 ( 33 ): 5416 - 5418 . DOI: 10.1002/anie.200601760 http://doi.org/10.1002/anie.200601760 .

张帅 , 杨洋 , 吉岩 , 等 . 磁响应液晶弹性体材料研究进展 . 应用化学 , 2021 . 38 ( 10 ): 1299 - 1309 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm , .

S ZHANG , Y YANG , Y JI , 等 . Research process on magneto-responsive liquid crystalline elastomers . Chinese Journal of Applied Chemistry , 2021 . 38 ( 10 ): 1299 - 1309 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm , .

J KÜPFER , H FINKELMANN . Nematic liquid single crystal elastomers . Die Makromolekulare Chemie, Rapid Communications , 1991 . 12 ( 12 ): 717 - 726 . DOI: 10.1002/marc.1991.030121211 http://doi.org/10.1002/marc.1991.030121211 .

S SCHUHLADEN , F PRELLER , R RIX , 等 . Iris-like tunable aperture employing liquid-crystal elastomers . Advanced Materials , 2014 . 26 ( 42 ): 7247 - 7251 . DOI: 10.1002/adma.201402878 http://doi.org/10.1002/adma.201402878 .

A BUGUIN , M H LI , P SILBERZAN , 等 . Micro-actuators: when artificial muscles made of nematic liquid crystal elastomers meet soft lithography . Journal of the American Chemical Society , 2006 . 128 ( 4 ): 1088 - 1089 . DOI: 10.1021/ja0575070 http://doi.org/10.1021/ja0575070 .

D L THOMSEN , P KELLER , J NACIRI , 等 . Liquid crystal elastomers with mechanical properties of a muscle . Macromolecules , 2001 . 34 ( 17 ): 5868 - 5875 . DOI: 10.1021/ma001639q http://doi.org/10.1021/ma001639q .

C L VAN OOSTEN , C W M BASTIAANSEN , D J BROER . Printed artificial cilia from liquid-crystal network actuators modularly driven by light . Nature Materials , 2009 . 8 ( 8 ): 677 - 682 . DOI: 10.1038/nmat2487 http://doi.org/10.1038/nmat2487 .

H YANG , A BUGUIN , J M TAULEMESSE , 等 . Micron-sized main-chain liquid crystalline elastomer actuators with ultralarge amplitude contractions . Journal of the American Chemical Society , 2009 . 131 ( 41 ): 15000 - 15004 . DOI: 10.1021/ja905363f http://doi.org/10.1021/ja905363f .

C OHM , C SERRA , R ZENTEL . A continuous flow synthesis of micrometer-sized actuators from liquid crystalline elastomers . Advanced Materials , 2009 . 21 ( 47 ): 4859 - 4862 . DOI: 10.1002/adma.200901522 http://doi.org/10.1002/adma.200901522 .

C P AMBULO , J J BURROUGHS , J M BOOTHBY , 等 . Four-dimensional printing of liquid crystal elastomers . ACS Applied Materials & Interfaces , 2017 . 9 ( 42 ): 37332 - 37339 . .

翟飞 , 封伟 . 4D打印液晶弹性体软体机器人及其热致运动行为 . 应用化学 , 2021 . 38 ( 10 ): 1389 - 1396 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm , .

F ZHAI , W FENG . 4D printed liquid crystal elastomer soft robot and its thermal derived motion behavior . Chinese Journal of Applied Chemistry , 2021 . 38 ( 10 ): 1389 - 1396 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm , .

Y B ZHANG , Z H WANG , Y YANG , 等 . Seamless multimaterial 3D liquid-crystalline elastomer actuators for next-generation entirely soft robots . Science Advances , 2020 . 6 ( 9 ): 8606 DOI: 10.1126/sciadv.aay8606 http://doi.org/10.1126/sciadv.aay8606 .

C M YAKACKI , M SAED , D P NAIR , 等 . Tailorable and programmable liquid-crystalline elastomers using a two-stage thiol-acrylate reaction . RSC Advances , 2015 . 5 ( 25 ): 18997 - 19001 . DOI: 10.1039/C5RA01039J http://doi.org/10.1039/C5RA01039J .

Z Q PEI , Y YANG , Q M CHEN , 等 . Mouldable liquid-crystalline elastomer actuators with exchangeable covalent bonds . Nature Materials , 2014 . 13 ( 1 ): 36 - 41 . DOI: 10.1038/nmat3812 http://doi.org/10.1038/nmat3812 .

F SCHMITT , O PICCIN , L BARBÉ , 等 . Soft robots manufacturing: a review . Frontiers in Robotics and AI , 2018 . 5 84 DOI: 10.3389/frobt.2018.00084 http://doi.org/10.3389/frobt.2018.00084 .

杨洋 , 张锡奇 , 危岩 , 等 . 可多次使用的液晶型类玻璃高分子 . 高分子学报 , 2017 . ( 10 ): 1662 - 1667 . DOI: 10.11777/j.issn1000-3304.2017.17134 http://doi.org/10.11777/j.issn1000-3304.2017.17134 .

Y YANG , X Q ZHANG , Y WEI , 等 . A liquid crystalline vitrimer with better actuation repeatability . Acta Polymerica Sinica , 2017 . ( 10 ): 1662 - 1667 . DOI: 10.11777/j.issn1000-3304.2017.17134 http://doi.org/10.11777/j.issn1000-3304.2017.17134 .

Z LI , Y YANG , Z H WANG , 等 . Polydopamine nanoparticles doped in liquid crystal elastomers for producing dynamic 3D structures . Journal of Materials Chemistry A , 2017 . 5 ( 14 ): 6740 - 6746 . DOI: 10.1039/C7TA00458C http://doi.org/10.1039/C7TA00458C .

T UBE , K KAWASAKI , T IKEDA . Photomobile liquid-crystalline elastomers with rearrangeable networks . Advanced Materials , 2016 . 28 ( 37 ): 8212 - 8217 . DOI: 10.1002/adma.201602745 http://doi.org/10.1002/adma.201602745 .

Y Z LI , O RIOS , J K KEUM , 等 . Photoresponsive liquid crystalline epoxy networks with shape memory behavior and dynamic ester bonds . ACS Applied Materials & Interfaces , 2016 . 8 ( 24 ): 15750 - 15757 . .

A GABLIER , M O SAED , E M TERENTJEV . Transesterification in epoxy-thiol exchangeable liquid crystalline elastomers . Macromolecules , 2020 . 53 ( 19 ): 8642 - 8649 . DOI: 10.1021/acs.macromol.0c01757 http://doi.org/10.1021/acs.macromol.0c01757 .

M O SAED , E M TERENTJEV . Siloxane crosslinks with dynamic bond exchange enable shape programming in liquid-crystalline elastomers . Scientific Reports , 2020 . 10 ( 1 ): 6609 DOI: 10.1038/s41598-020-63508-4 http://doi.org/10.1038/s41598-020-63508-4 .

Q M CHEN , Y S LI , Y YANG , 等 . Durable liquid-crystalline vitrimer actuators . Chemical Science , 2019 . 10 ( 10 ): 3025 - 3030 . DOI: 10.1039/C8SC05358H http://doi.org/10.1039/C8SC05358H .

Y YANG , E M TERENTJEV , Y B ZHANG , 等 . Reprocessable thermoset soft actuators . Angewandte Chemie International Edition , 2019 . 58 ( 48 ): 17474 - 17479 . DOI: 10.1002/anie.201911612 http://doi.org/10.1002/anie.201911612 .

Y H WU , Y YANG , X J QIAN , 等 . Liquid-crystalline soft actuators with switchable thermal reprogrammability . Angewandte Chemie International Edition , 2020 . 59 ( 12 ): 4778 - 4784 . DOI: 10.1002/anie.201915694 http://doi.org/10.1002/anie.201915694 .

Z C JIANG , Y Y XIAO , L YIN , 等 . "Self-lockable" liquid crystalline Diels-Alder dynamic network actuators with room temperature programmability and solution reprocessability . Angewandte Chemie International Edition , 2020 . 132 ( 12 ): 4955 - 4961 . .

P BERTO , A POINTET , C LE COZ , 等 . Recyclable telechelic cross-linked polybutadiene based on reversible Diels-Alder chemistry . Macromolecules , 2018 . 51 ( 3 ): 651 - 659 . DOI: 10.1021/acs.macromol.7b02220 http://doi.org/10.1021/acs.macromol.7b02220 .

J BAI , H LI , Z X SHI , 等 . An eco-friendly scheme for the cross-linked polybutadiene elastomer via thiol-ene and Diels-Alder click chemistry . Macromolecules , 2015 . 48 ( 11 ): 3539 - 3546 . DOI: 10.1021/acs.macromol.5b00389 http://doi.org/10.1021/acs.macromol.5b00389 .

L M POLGAR , M VAN DUIN , A A BROEKHUIS , 等 . Use of Diels-Alder chemistry for thermoreversible cross-linking of rubbers: the next step toward recycling of rubber products? . Macromolecules , 2015 . 48 ( 19 ): 7096 - 7105 . DOI: 10.1021/acs.macromol.5b01422 http://doi.org/10.1021/acs.macromol.5b01422 .

X X LIU , P F DU , L LIU , 等 . Kinetic study of Diels-Alder reaction involving in maleimide-furan compounds and linear polyurethane . Polymer Bulletin , 2013 . 70 ( 8 ): 2319 - 2335 . DOI: 10.1007/s00289-013-0954-8 http://doi.org/10.1007/s00289-013-0954-8 .

Z J WANG , Q G HE , Y WANG , 等 . Programmable actuation of liquid crystal elastomers via "living" exchange reaction . Soft Matter , 2019 . 15 ( 13 ): 2811 - 2816 . DOI: 10.1039/C9SM00322C http://doi.org/10.1039/C9SM00322C .

B T MICHAL , C A JAYE , E J SPENCER , 等 . Inherently photohealable and thermal shape-memory polydisulfide networks . ACS Macro Letters , 2013 . 2 ( 8 ): 694 - 699 . DOI: 10.1021/mz400318m http://doi.org/10.1021/mz400318m .

J CANADELL , H GOOSSENS , B KLUMPERMAN . Self-healing materials based on disulfide links . Macromolecules , 2011 . 44 ( 8 ): 2536 - 2541 . DOI: 10.1021/ma2001492 http://doi.org/10.1021/ma2001492 .

B D FAIRBANKS , S P SINGH , C N BOWMAN , 等 . Photodegradable, photoadaptable hydrogels via radical-mediated disulfide fragmentation reaction . Macromolecules , 2011 . 44 ( 8 ): 2444 - 2450 . DOI: 10.1021/ma200202w http://doi.org/10.1021/ma200202w .

Z B WEN , M K MCBRIDE , X P ZHANG , 等 . Reconfigurable LC elastomers: using a thermally programmable monodomain to access two-way free-standing multiple shape memory polymers . Macromolecules , 2018 . 51 ( 15 ): 5812 - 5819 . DOI: 10.1021/acs.macromol.8b01315 http://doi.org/10.1021/acs.macromol.8b01315 .

Y YANG , Z Q PEI , Z LI , 等 . Making and remaking dynamic 3D structures by shining light on flat liquid crystalline vitrimer films without a mold . Journal of the American Chemical Society , 2016 . 138 ( 7 ): 2118 - 2121 . DOI: 10.1021/jacs.5b12531 http://doi.org/10.1021/jacs.5b12531 .

Q M CHEN , Y WEI , Y JI . Photo-responsive liquid crystalline vitrimer containing oligoanilines . Chinese Chemical Letters , 2017 . 28 ( 11 ): 2139 - 2142 . DOI: 10.1016/j.cclet.2017.09.011 http://doi.org/10.1016/j.cclet.2017.09.011 .

M K MCBRIDE , M HENDRIKX , D Q LIU , 等 . Photoinduced plasticity in cross-linked liquid crystalline networks . Advanced Materials , 2017 . 29 ( 17 ): 1606509 DOI: 10.1002/adma.201606509 http://doi.org/10.1002/adma.201606509 .

X J QIAN , Q M CHEN , Y YANG , 等 . Untethered recyclable tubular actuators with versatile locomotion for soft continuum robots . Advanced Materials , 2018 . 30 ( 29 ): 1801103 DOI: 10.1002/adma.201801103 http://doi.org/10.1002/adma.201801103 .

M K MCBRIDE , A M MARTINEZ , L COX , 等 . A readily programmable, fully reversible shape-switching material . Science Advances , 2018 . 4 ( 8 ): eaat4634 DOI: 10.1126/sciadv.aat4634 http://doi.org/10.1126/sciadv.aat4634 .

H FRISCH , D E MARSCHNER , A S GOLDMANN , 等 . Wavelength-gated dynamic covalent chemistry . Angewandte Chemie International Edition , 2018 . 57 ( 8 ): 2036 - 2045 . DOI: 10.1002/anie.201709991 http://doi.org/10.1002/anie.201709991 .

L WANG , X F YANG , H M CHEN , 等 . Design of triple-shape memory polyurethane with photo-cross-linking of cinnamon groups . ACS Applied Materials & Interfaces , 2013 . 5 ( 21 ): 10520 - 10528 . .

Z J WANG , H M TIAN , Q G HE , 等 . Reprogrammable, reprocessible, and self-healable liquid crystal elastomer with exchangeable disulfide bonds . ACS Applied Materials & Interfaces , 2017 . 9 ( 38 ): 33119 - 33128 . .

Z C JIANG , Y Y XIAO , X TONG , 等 . Selective decrosslinking in liquid crystal polymer actuators for optical reconfiguration of origami and light-fueled locomotion . Angewandte Chemie International Edition , 2019 . 131 ( 16 ): 5386 - 5391 . .

Y Y XIAO , Z C JIANG , X TONG , 等 . Biomimetic locomotion of electrically powered "Janus" soft robots using a liquid crystal polymer . Advanced Materials , 2019 . 31 ( 36 ): 1903452 DOI: 10.1002/adma.201903452 http://doi.org/10.1002/adma.201903452 .

B ZUO , M WANG , B P LIN , 等 . Visible and infrared three-wavelength modulated multi-directional actuators . Nature Communications , 2019 . 10 ( 1 ): 4539 DOI: 10.1038/s41467-019-12583-x http://doi.org/10.1038/s41467-019-12583-x .

X LI , S D MA , J HU , 等 . Photo-activated bimorph composites of Kapton and liquid-crystalline polymer towards biomimetic circadian rhythms of Albizia julibrissin leaves . Journal of Materials Chemistry C , 2019 . 7 ( 3 ): 622 - 629 . DOI: 10.1039/C8TC05186K http://doi.org/10.1039/C8TC05186K .

B ZUO , M WANG , B P LIN , 等 . Photomodulated tricolor-changing artificial flowers . Chemistry of Materials , 2018 . 30 ( 21 ): 8079 - 8088 . DOI: 10.1021/acs.chemmater.8b04204 http://doi.org/10.1021/acs.chemmater.8b04204 .

F J GE , R YANG , X TONG , 等 . A multifunctional dye-doped liquid crystal polymer actuator: light-guided transportation, turning in locomotion, and autonomous motion . Angewandte Chemie International Edition , 2018 . 130 ( 36 ): 11932 - 11937 . .

M WANG , B P LIN , H YANG . A plant tendril mimic soft actuator with phototunable bending and chiral twisting motion modes . Nature Communications , 2016 . 7 13981 DOI: 10.1038/ncomms13981 http://doi.org/10.1038/ncomms13981 .

A AGRAWAL , T YUN , S L PESEK , 等 . Shape-responsive liquid crystal elastomer bilayers . Soft Matter , 2014 . 10 ( 9 ): 1411 - 1415 . DOI: 10.1039/C3SM51654G http://doi.org/10.1039/C3SM51654G .

L T DE HAAN , J M N VERJANS , D J BROER , 等 . Humidity-responsive liquid crystalline polymer actuators with an asymmetry in the molecular trigger that bend, fold, and curl . Journal of the American Chemical Society , 2014 . 136 ( 30 ): 10585 - 10588 . DOI: 10.1021/ja505475x http://doi.org/10.1021/ja505475x .

M DAI , O T PICOT , J M VERJANS , 等 . Humidity-responsive bilayer actuators based on a liquid-crystalline polymer network . ACS Applied Materials & Interfaces , 2013 . 5 ( 11 ): 4945 - 4950 . .

J M BOOTHBY , T H WARE . Dual-responsive, shape-switching bilayers enabled by liquid crystal elastomers . Soft Matter , 2017 . 13 ( 24 ): 4349 - 4356 . DOI: 10.1039/C7SM00541E http://doi.org/10.1039/C7SM00541E .

M O SAED , A GABLIER , E M TERENTEJV . Liquid crystalline vitrimers with full or partial boronic-ester bond exchange . Advanced Functional Materials , 2020 . 30 ( 3 ): 1906458 DOI: 10.1002/adfm.201906458 http://doi.org/10.1002/adfm.201906458 .

L CHEN , D CHU , Z A CHENG , 等 . Designing seamless-welded liquid-crystalline soft actuators with a "glue-free" method by dynamic boroxines . Polymer , 2020 . 208 122962 DOI: 10.1016/j.polymer.2020.122962 http://doi.org/10.1016/j.polymer.2020.122962 .

L CHEN , H K BISOYI , Y L HUANG , 等 . Healable and rearrangeable networks of liquid crystal elastomers enabled by diselenide bonds . Angewandte Chemie International Edition , 2021 . 60 ( 30 ): 16394 - 16398 . DOI: 10.1002/anie.202105278 http://doi.org/10.1002/anie.202105278 .

L CHEN , M WANG , L X GUO , 等 . A cut-and-paste strategy towards liquid crystal elastomers with complex shape morphing . Journal of Materials Chemistry C , 2018 . 6 ( 30 ): 8251 - 8257 . DOI: 10.1039/C8TC01236A http://doi.org/10.1039/C8TC01236A .

X L LU , S W GUO , X TONG , 等 . Tunable photocontrolled motions using stored strain energy in malleable azobenzene liquid crystalline polymer actuators . Advanced Materials , 2017 . 29 ( 28 ): 1606467 DOI: 10.1002/adma.201606467 http://doi.org/10.1002/adma.201606467 .

Q M CHEN , W W LI , Y WEI , 等 . Reprogrammable 3D liquid-crystalline actuators with precisely controllable stepwise actuation . Advanced Intelligent Systems , 2021 . 3 ( 8 ): 2000249 DOI: 10.1002/aisy.202000249 http://doi.org/10.1002/aisy.202000249 .

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