Paper Title:

Study on the Shape Memory Effect of Styrene Copolymer

Periodical Advanced Materials Research (Volumes 148 - 149)
Main Theme Manufacturing Processes and Systems
Edited by Xianghua Liu, Zhengyi Jiang and Jingtao Han
Pages 1464-1468
DOI 10.4028/www.scientific.net/AMR.148-149.1464
Citation Da Wei Zhang et al., 2010, Advanced Materials Research, 148-149, 1464
Online since October, 2010
Authors Da Wei Zhang, Yan Hua Zhang, Li Hua Zhang, Shui Hu
Keywords Cross-Linking Degree, Shape Recovery, Shape-Memory Polymer
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Abstract

This paper is concerned about the synthesis of shape memory styrene copolymer and the investigation of the influence of cross-linking degree on its shape memory effect. The influence of cross-linking degree on shape memory effect of styrene copolymer was investigated through altering the dosage of cross-linking agent. The Tg increased from 65 to 80.7 with the gel content increase from 35% to 80% which is achieved by increasing the dosage of cross-linking agent from 1% to 4%. Moreover, the SMP experienced good SME and the largest reversible strain of the SMP reached as high as 150%. When the copolymer was heated above Tg+30 (different copolymers performed different Tg), the shape recovery speed of the copolymers increased with the gel content increase.