Hybrid liquid-crystalline block copolymers I. Synthesis and mesomorphic behavior of polyester–polymethacrylate block copolymers

Michele Laus; Maria Chiara Bignozzi; Annino Sante Angeloni; Oriano Francescangeli; Giancarlo Galli; Emo Chiellini

doi:10.1295/polymj.27.993

Hybrid liquid-crystalline block copolymers I. Synthesis and mesomorphic behavior of polyester–polymethacrylate block copolymers

Michele Laus
, Maria Chiara Bignozzi
, Annino Sante Angeloni
, Oriano Francescangeli
, Giancarlo Galli
, Emo Chiellini

Research output: Contribution to journal › Article › peer-review

Abstract

A new type of block copolymers comprising both main-chain and side-chain liquid-crystalline (LC) blocks in the same macromolecular structure was synthesized and studied. The former was a semiflexible LC polyester block, and the latter was an LC polymethacrylate block. Thermal, dynamic-mechanical, and X-ray diffraction data indicated that the two structurally different blocks were partly phase-separated in the glassy and LC states. Significant deviations of the transition temperatures and enthalpies were observed relative to those of the corresponding homopolymers.

Original language	English
Pages (from-to)	993-1001
Number of pages	9
Journal	Polymer Journal
Volume	27
Issue number	10
DOIs	https://doi.org/10.1295/polymj.27.993
Publication status	Published - Oct 1995
Externally published	Yes

Keywords

Block copolymer
Liquid-Crystalline Copolymer
Phase separation
Polyester block
Polymethacrylate block

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10.1295/polymj.27.993

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title = "Hybrid liquid-crystalline block copolymers I. Synthesis and mesomorphic behavior of polyester–polymethacrylate block copolymers",

abstract = "A new type of block copolymers comprising both main-chain and side-chain liquid-crystalline (LC) blocks in the same macromolecular structure was synthesized and studied. The former was a semiflexible LC polyester block, and the latter was an LC polymethacrylate block. Thermal, dynamic-mechanical, and X-ray diffraction data indicated that the two structurally different blocks were partly phase-separated in the glassy and LC states. Significant deviations of the transition temperatures and enthalpies were observed relative to those of the corresponding homopolymers.",

keywords = "Block copolymer, Liquid-Crystalline Copolymer, Phase separation, Polyester block, Polymethacrylate block",

author = "Michele Laus and Bignozzi, \{Maria Chiara\} and Angeloni, \{Annino Sante\} and Oriano Francescangeli and Giancarlo Galli and Emo Chiellini",

year = "1995",

month = oct,

doi = "10.1295/polymj.27.993",

language = "English",

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pages = "993--1001",

journal = "Polymer Journal",

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T1 - Hybrid liquid-crystalline block copolymers I. Synthesis and mesomorphic behavior of polyester–polymethacrylate block copolymers

AU - Laus, Michele

AU - Bignozzi, Maria Chiara

AU - Angeloni, Annino Sante

AU - Francescangeli, Oriano

AU - Galli, Giancarlo

AU - Chiellini, Emo

PY - 1995/10

Y1 - 1995/10

N2 - A new type of block copolymers comprising both main-chain and side-chain liquid-crystalline (LC) blocks in the same macromolecular structure was synthesized and studied. The former was a semiflexible LC polyester block, and the latter was an LC polymethacrylate block. Thermal, dynamic-mechanical, and X-ray diffraction data indicated that the two structurally different blocks were partly phase-separated in the glassy and LC states. Significant deviations of the transition temperatures and enthalpies were observed relative to those of the corresponding homopolymers.

AB - A new type of block copolymers comprising both main-chain and side-chain liquid-crystalline (LC) blocks in the same macromolecular structure was synthesized and studied. The former was a semiflexible LC polyester block, and the latter was an LC polymethacrylate block. Thermal, dynamic-mechanical, and X-ray diffraction data indicated that the two structurally different blocks were partly phase-separated in the glassy and LC states. Significant deviations of the transition temperatures and enthalpies were observed relative to those of the corresponding homopolymers.

KW - Block copolymer

KW - Liquid-Crystalline Copolymer

KW - Phase separation

KW - Polyester block

KW - Polymethacrylate block

UR - https://www.scopus.com/pages/publications/0029516338

U2 - 10.1295/polymj.27.993

DO - 10.1295/polymj.27.993

M3 - Article

SN - 0032-3896

VL - 27

SP - 993

EP - 1001

JO - Polymer Journal

JF - Polymer Journal

IS - 10

ER -

Hybrid liquid-crystalline block copolymers I. Synthesis and mesomorphic behavior of polyester–polymethacrylate block copolymers

Abstract

Keywords

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