Chiral liquid-crystalline block copolymers based on polyether and mesogenic polyacrylate blocks

Emo Chiellini, Giancarlo Galli, Ersin I. Serhatli, Yusuf Yagci, Michele Laus, Annino Sante Angeloni

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

New liquid-crystalline ABA triblock copolymers containing crystalline polytetrahydrofuran (A) and chiral side-chain liquid-crystalline (B) blocks were prepared, and their phase behavior was studied. Block B was one of different polyacrylates containing the biphenyl mesogen variously spaced from the backbone and substituted with chiral groups, that are known to exhibit an electroclinic response in the chiral smectic A phase of the relevant homopolymers. The copolymers appeared to be phase-separated and formed mesophases characterized by lower transition temperature and enthalpy than those of the corresponding polyacrylate homopolymers.

Original languageEnglish
Pages (from-to)311-322
Number of pages12
JournalFerroelectrics
Volume148
Issue number1
DOIs
Publication statusPublished - 1993

Funding

This work was partially supported by the National Research Council of Italy (CNR) - Progetto Chimica Fine 2-Sottoprogetto Materiali Polimerici. Partial financial support from ITU, Arastirma Fonu (Turkiye), is also gratefully acknowledged. E.I.S. thanks the the Minister0 degli Af'fari Esteri of Italy for a

FundersFunder number
Arastirma Fonu
International Technological University
Consiglio Nazionale delle Ricerche

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