溶液敏感型智能高分子薄膜

胡梦婷; 胡宏龙; 袁丛龙; 刘炳辉; 李志英; 郑致刚

doi:10.37188/CJLCD.2021-0128

您当前的位置：

首页 >

文章列表页 >

溶液敏感型智能高分子薄膜

材料物理 | 更新时间：2021-09-10

- 溶液敏感型智能高分子薄膜
- Solution-sensitive intelligent polymer film
- 液晶与显示 2021年36卷第9期页码：1205-1213
- 作者机构：
  
  1.华东理工大学材料科学与工程学院, 上海 200237
  2.华东理工大学化学与分子工程学院, 上海 200237
  3.华东理工大学理学院, 上海 200237
- 作者简介：
  
  [ "胡梦婷(1995-), 女, 安徽宣城人, 硕士研究生, 2018年于扬州大学获得学士学位, 主要从事液晶聚合物薄膜方面的研究。E-mail:Humengting0415@163.com" ]
  [ "郑致刚(1982-), 男, 浙江宁波人, 博士, 教授, 2009年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事液晶态功能材料与微纳光学器件研究。E-mail:zgzheng@ecust.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(61822504);国家自然科学基金(62035008);国家自然科学基金(51873060);上海市青年科技启明星计划(17QA1401100);中央高校基本科研业务费项目
- DOI：10.37188/CJLCD.2021-0128
  中图分类号： O753.2
- 收稿日期：2021-05-11，
  
  修回日期：2021-05-25，
  
  纸质出版日期：2021-09
- 稿件说明：
移动端阅览
胡梦婷, 胡宏龙, 袁丛龙, 等. 溶液敏感型智能高分子薄膜[J]. 液晶与显示, 2021,36(9):1205-1213.

Meng-ting HU, Hong-long HU, Cong-long YUAN, et al. Solution-sensitive intelligent polymer film[J]. Chinese journal of liquid crystals and displays, 2021, 36(9): 1205-1213.
胡梦婷, 胡宏龙, 袁丛龙, 等. 溶液敏感型智能高分子薄膜[J]. 液晶与显示, 2021,36(9):1205-1213. DOI： 10.37188/CJLCD.2021-0128.

Meng-ting HU, Hong-long HU, Cong-long YUAN, et al. Solution-sensitive intelligent polymer film[J]. Chinese journal of liquid crystals and displays, 2021, 36(9): 1205-1213. DOI： 10.37188/CJLCD.2021-0128.

摘要

本文采用胆甾相液晶诱导的方法制备手性多孔高分子薄膜，通过将向列相液晶与不同种类有机溶剂按照不同比例混合后填充入薄膜中以探究具有一维周期性螺旋结构的薄膜对溶液的敏感性。结果表明，基于聚合物网络的形状记忆效应和强大的界面锚定作用，聚合物薄膜对溶液都有响应并呈现出选择性反射。由于液晶与溶剂不同配比混合溶液产生的平均折射率差异，薄膜的反射带迁移可达140 nm。此外，不同溶剂与液晶按照相同的比例混合填充后重构样品的反射带差异也较为明显。具体来说，所选用的乙酸丁酯溶剂的折射率仅比乳酸丁酯溶剂的折射率小0.03，但薄膜的反射带中心波长却相对红移约20 nm，进一步的实验表征和分析表明，这一现象归因于聚合物薄膜的溶胀度会随着溶剂与聚合物薄膜两者之间的溶度参数差值而改变，即溶剂与聚合物的溶度参数越接近，溶剂越容易扩散进入聚合物薄膜中，并使其体积膨胀，从而螺距产生更大的拉伸，由此导致反射带发生相对红移。因此，这种柔性反射膜是具有溶液敏感性的。

Abstract

In order to explore the sensitivity of the polymer film with one-dimensional periodic helical structure to the solution

a manner molded by cholesteric liquid crystal(CLC) is utilized for producing the chiral porous polymer film

and then the research is carried out through permeating the solution mixed by diverse proportions with nematic liquid crystal and different organic solvents into the film. The results indicate that the polymer film responds to the solution and exhibits selective reflection

which is attributed to the shape memory effect and the strong interface anchoring force of the polymer network. The reflection band shifts up to 140 nm owing to the difference in average refractive index of mixed solutions with different ratios of liquid crystal and solvent. In addition

it is also obvious that the type of solvent makes difference to the reflection band of the film when the solvent is mixed with the same proportion of liquid crystal. Specifically

the refractive index of the selected butyl acetate solvent is only 0.03 lower than that of butyl lactate

however

the central wavelength of the reflection band is approximately 20 nm larger than that of butyl lactate. Further experimental characterization and analysis manifest that the swelling degree of the polymer film varies with the discrepancy of solubility parameter between solvents and the polymer film

that is

the closer the solubility parameters are

the easier it is for the solvent to diffuse into the polymer and make its volume expand

resulting in the pitch elongation and consequent redshift of the reflection band. Therefore

the flexible reflective film is solution sensitive.

关键词

Keywords

references

王海宏 , 焦峰 , 马群刚 . 高透过率透明液晶显示器研究与开发 . 液晶与显示 , 2014 . 29 ( 6 ): 901 - 905 . DOI: 10.3788/YJYXS20142906.0901 http://doi.org/10.3788/YJYXS20142906.0901 .

H H WANG , F JIAO , Q G MA . Research and development of high transmittance transparent liquid crystal display . Chinese Journal of Liquid Crystals and Displays , 2014 . 29 ( 6 ): 901 - 905 . DOI: 10.3788/YJYXS20142906.0901 http://doi.org/10.3788/YJYXS20142906.0901 .

P Z SUN , Z LIU , W WANG , 等 . Light-reconfigured waveband-selective diffraction device enabled by micro-patterning of a photoresponsive self-organized helical superstructure . Journal of Materials Chemistry C , 2016 . 4 ( 39 ): 9325 - 9330 . DOI: 10.1039/C6TC02443B http://doi.org/10.1039/C6TC02443B .

C L YUAN , W B HUANG , Z G ZHENG , 等 . Stimulated transformation of soft helix among helicoidal, heliconical, and their inverse helices . Science Advances , 2019 . 5 ( 10 ): eaax9501 DOI: 10.1126/sciadv.aax9501 http://doi.org/10.1126/sciadv.aax9501 .

K NAYANI , P RAI , N Q BAO , 等 . Liquid crystals with interfacial ordering that enhances responsiveness to chemical targets . Advanced Materials , 2018 . 30 ( 27 ): 1706707 DOI: 10.1002/adma.201706707 http://doi.org/10.1002/adma.201706707 .

J J TIAN , Y R HE , J T LI , 等 . Fast, real-time, in situ monitoring of solar ultraviolet radiation using sunlight-driven photoresponsive liquid crystals . Advanced Optical Materials , 2018 . 6 ( 6 ): 1701337 DOI: 10.1002/adom.201701337 http://doi.org/10.1002/adom.201701337 .

O BATIR , E BAT , E BUKUSOGLU . Strain-enhanced sensitivity of polymeric sensors templated from cholesteric liquid crystals . Soft Matter , 2020 . 16 ( 29 ): 6794 - 6802 . DOI: 10.1039/D0SM00905A http://doi.org/10.1039/D0SM00905A .

L WANG , A M URBAS , Q LI . Nature-inspired emerging chiral liquid crystal nanostructures: from molecular self-assembly to dna mesophase and nanocolloids . Advanced Materials , 2020 . 32 ( 41 ): 1801335 DOI: 10.1002/adma.201801335 http://doi.org/10.1002/adma.201801335 .

Q Y MO , B H LIU , W B HUANG , 等 . Reversible on-off of chirality and anisotropy in patterned coexistence of achiral-anisotropic and chiral-isotropic soft materials . Advanced Optical Materials , 2020 . 8 ( 18 ): 2000155 DOI: 10.1002/adom.202000155 http://doi.org/10.1002/adom.202000155 .

D D ZHANG , W T SHI , H CAO , 等 . Reflective band memory effect of cholesteric polymer networks based on washout/refilling method . Macromolecular Chemistry and Physics , 2020 . 221 ( 22 ): 1900572 DOI: 10.1002/macp.201900572 http://doi.org/10.1002/macp.201900572 .

J H LIU , H FANG , C C CHIEN . Solvent-tunable colors in imprinted helical structures on polymer template via multiple UV-induced polymerization . Journal of Polymer Science, Part A: Polymer Chemistry , 2011 . 49 ( 5 ): 1256 - 1262 . DOI: 10.1002/pola.24545 http://doi.org/10.1002/pola.24545 .

J D LIN , C L CHU , H Y LIN , 等 . Wide-band tunable photonic bandgaps based on nematic-refilling cholesteric liquid crystal polymer template samples . Optical Materials Express , 2015 . 5 ( 6 ): 1419 - 1430 . DOI: 10.1364/OME.5.001419 http://doi.org/10.1364/OME.5.001419 .

S S CHOI , S M MORRIS , W T S HUCK , 等 . Simultaneous red-green-blue reflection and wavelength tuning from an achiral liquid crystal and a polymer template . Advanced Materials , 2010 . 22 ( 1 ): 53 - 56 . DOI: 10.1002/adma.200901487 http://doi.org/10.1002/adma.200901487 .

J D LIN , H L LIN , H Y LIN , 等 . Widely tunable photonic bandgap and lasing emission in enantiomorphic cholesteric liquid crystal templates . Journal of Materials Chemistry C , 2017 . 5 ( 13 ): 3222 - 3228 . DOI: 10.1039/C7TC00090A http://doi.org/10.1039/C7TC00090A .

Y LI , D LUO , Z H PENG . Full-color reflective display based on narrow bandwidth templated cholesteric liquid crystal film . Optical Materials Express , 2017 . 7 ( 1 ): 16 - 24 . DOI: 10.1364/OME.7.000016 http://doi.org/10.1364/OME.7.000016 .

M MITOV , N DESSAUD . Going beyond the reflectance limit of cholesteric liquid crystals . Nature Materials , 2006 . 5 ( 5 ): 361 - 364 . DOI: 10.1038/nmat1619 http://doi.org/10.1038/nmat1619 .

J B GUO , F LIU , F J CHEN , 等 . Realisation of cholesteric liquid-crystalline materials reflecting both right-and left-circularly polarised light using the wash-out/refill technique . Liquid Crystals , 2010 . 37 ( 2 ): 171 - 178 . DOI: 10.1080/02678290903443897 http://doi.org/10.1080/02678290903443897 .

M E MCCONNEY , V P TONDIGLIA , J M HURTUBISE , 等 . Thermally induced, multicolored hyper-reflective cholesteric liquid crystals . Advanced Materials , 2011 . 23 ( 12 ): 1453 - 1457 . DOI: 10.1002/adma.201003552 http://doi.org/10.1002/adma.201003552 .

Y LI , Y J LIU , H T DAI , 等 . Flexible cholesteric films with super-reflectivity and high stability based on a multi-layer helical structure . Journal of Materials Chemistry C , 2017 . 5 ( 41 ): 10828 - 10833 .

周康 , 袁从龙 , 李萧 , 等 . 蓝相液晶指向有序的定域化及微结构制备 . 物理学报 , 2018 . 67 ( 6 ): 066101 10.7498/aps.67.20172517 10.7498/aps.67.20172517 .

K ZHOU , C L YUAN , X LI , 等 . Localization of blue phase liquid crystal with ordered crystallographic direction and well-defined micro-patterning . Acta Physica Sinica , 2018 . 67 ( 6 ): 066101 10.7498/aps.67.20172517 10.7498/aps.67.20172517 .

R B DIEGO , J L G RIBELLES , M S SÁNCHEZ . Pore collapse during the fabrication process of rubber-like polymer scaffolds . Journal of Applied Polymer Science , 2007 . 104 ( 3 ): 1475 - 1481 . DOI: 10.1002/app.25202 http://doi.org/10.1002/app.25202 .

C K CHANG , C W M BASTIAANSEN , D J BROER , 等 . Discrimination of alcohol molecules using hydrogen-bridged cholesteric polymer networks . Macromolecules , 2012 . 45 ( 11 ): 4550 - 4555 . DOI: 10.1021/ma3007152 http://doi.org/10.1021/ma3007152 .

兰梦菲 , 安宁 , 赵颖 , 等 . 致孔剂溶解度参数对大孔层析介质的结构影响研究 . 分析化学 , 2018 . 46 ( 2 ): 288 - 292 . DOI: 10.11895/j.issn.0253-3820.171299 http://doi.org/10.11895/j.issn.0253-3820.171299 .

M F LAN , N AN , Y ZHAO , 等 . Effect of porogen solubility parameter on structure of chromatographic supports with large pores . Chinese Journal of Analytical Chemistry , 2018 . 46 ( 2 ): 288 - 292 . DOI: 10.11895/j.issn.0253-3820.171299 http://doi.org/10.11895/j.issn.0253-3820.171299 .

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

智能响应结构色液晶弹性体研究进展

液晶在气体传感领域的研究进展

多色柔性自支撑胆甾相液晶薄膜反射器件

基于双层液晶功能膜的多维防伪技术