The first blue phase reactive monomers containing a bi-mesogenic core and their side-chain polymers

Chong Lun Wei, Yen Ting Lin, Jin Huai Chang, I. Hung Chiang, Hong-Cheu Lin*

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Two novel blue phase (BP) reactive monomers M1 and M2 containing a bi-mesogenic core are first reported by introducing two end-attached acrylic spacers with different lengths. Due to the self-assembly of bi-mesogenic cores with the same side-by-side end-attached acrylate spacers in homopolymers P1 and P2, no blue phase could be induced by homopolymerization of M1 and M2. However, by interrupting the self-assembly of bi-mesogenic cores with different side-by-side spacer lengths of copolymers P12, double-twisted cylinders of BPIII could be further extended by copolymerization of M1 and M2 with different molar ratios. With M1:M2 = 5:5 (molar ratio) in both side-chain copolymers P12(soln:5/5) and P12(photo:5/5) rather than binary mixture M1/M2(5/5), the widest BPIII ranges of 5.3 °C and 3.8 °C could be obtained by solution- and photo-polymerization, respectively.

Original languageEnglish
Pages (from-to)4663-4669
Number of pages7
JournalJournal of Materials Chemistry C
Volume3
Issue number18
DOIs
StatePublished - 14 May 2015

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