Main-chain biodegradable liquid crystal derived from cholesteryl derivative end-capped poly(trimethylene carbonate): synthesis and characterisation. Issue 6 (3rd May 2017)

• Record Type: Journal Article
• Authors: Chen, Guixiang; Yang, Liqun; Liu, Xiaofeng; Xie, Yujiao; Guo, Zhihao; Li, Miao; Guo, Jing; Hu, Jianshe
• Is Part Of: Liquid crystals. Volume 44:Issue 6(2017)
• Page Start: 1050
• Page End: 1058
• Publication Date: 2017-05-03
• Subjects: Main-chain biodegradable liquid crystal -- poly(trimethylene carbonate) -- cholesteryl derivative -- phase behaviour; Liquid crystals -- Periodicals; 548.905
• DOI: 10.1080/02678292.2016.1257745
• Languages: English
• ISSNs: 0267-8292

Abstract

ABSTRACT: Main-chain biodegradable liquid crystal derived from cholesteryl derivative end-capped poly(trimethylene carbonate) was investigated. The novel liquid crystal was synthesised via ring-opening polymerisation of trimethylene carbonate initiated by cholesteryl derivative with an alkyl spacer and end primary hydroxyl group, without any catalyst. The chemical structure of resulting polymers was verified by 1 H NMR. Liquid crystalline properties were validated by X-ray diffraction, differential scanning calorimetry, and polarising optical microscopy. The results showed that all the synthesised polymers Chol-(CH2 )2 -(TMC)n exhibited mesomorphism in particular temperature ranges because of the introduction of the cholesteryl derivative moiety. Graphical Abstract: