Macro-oriented network of liquid-crystalline polyesters:: crosslinking induced by γ-irradiation and thermally activated reaction

被引：7

作者：

Acierno, D

Di Maio, L

Iannelli, P

Spadaro, G

Valenza, A

机构：

[1] Univ Salerno, Dipartimento Ingn Chim & Alimentare, I-84084 Fisciano Salerno, Italy

[2] Univ Naples, Dipartimento Ingn Mat & Prod, I-80125 Naples, Italy

[3] Univ Palermo, Dipartimento Ingn Chim Proc & Mat, I-90133 Palermo, Italy

[4] Univ Messina, Dipartimento Chim Ind & Ingn Mat, S Agata, ME, Italy

来源：

POLYMER | 2000年 / 41卷 / 17期

关键词：

liquid-crystalline polymers; fibres; network;

D O I：

10.1016/S0032-3861(99)00869-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The synthesis of a macro-oriented network from liquid-crystalline polymers, bearing pendant groups with unsaturations, is reported. Virgin polymers are processable to obtain oriented samples, e.g. fibres, which may be crosslinked through thermal activation and/or exposure to gamma-radiation, The liquid-crystalline state is "frozen" and the macroscopic anisotropy is preserved even at high temperatures. Compared to virgin fibres, irradiated samples show an enhancement of tensile performances, thus indicating that the main effect of irradiation is crosslinking without significant degradation phenomena. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：6647 / 6654

页数：8

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