SHAO Lei-shan, LI Jing-jing, DU Xin, WANG Ying-han. Effect of Molecular Weight of Macroinitiator on Morphology of Polymer Dispersed Liquid Crystal[J]. , 2012,(6): 736-741
SHAO Lei-shan, LI Jing-jing, DU Xin, WANG Ying-han. Effect of Molecular Weight of Macroinitiator on Morphology of Polymer Dispersed Liquid Crystal[J]. , 2012,(6): 736-741 DOI: 10.3788/YJYXS20122706.0736.
Effect of Molecular Weight of Macroinitiator on Morphology of Polymer Dispersed Liquid Crystal
The polymer dispersed liquid crystal (PDLC) films were prepared by photopolymerization induced phase separation with macroinitiator (RAFT-PS) of different molecular weight
synthesized by RAFT polymerization. The influences of molecular weight of RAFT-PS on morphology
photopolymerization kinetics
nematic fraction and electro-optical pro-perties of PDLCs had been investigated. It was found that the key factor of affecting morphology was not the molecular weight of polymer matrix and the rate of polymerization but the molecular weight of RAFT-PS. On the other hand
the diameter of liquid crystal droplets was effectively controlled by changing the molecular weight of RAFT-PS. This result contributed to improve electro-optical properties of PDLCs.
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