共 31 条
Synthesis and characterisation of biodegradable liquid crystal elastomer with the property of shape recovery
被引:15
作者:

Xu, Mingyao
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h-index: 0
机构:
Northeastern Univ, Ctr Mol Sci & Engn, Shenyang, Liaoning, Peoples R China Northeastern Univ, Ctr Mol Sci & Engn, Shenyang, Liaoning, Peoples R China

Cong, Yuehua
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h-index: 0
机构:
Northeastern Univ, Ctr Mol Sci & Engn, Shenyang, Liaoning, Peoples R China Northeastern Univ, Ctr Mol Sci & Engn, Shenyang, Liaoning, Peoples R China

Zhang, Baoyan
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h-index: 0
机构:
Northeastern Univ, Ctr Mol Sci & Engn, Shenyang, Liaoning, Peoples R China Northeastern Univ, Ctr Mol Sci & Engn, Shenyang, Liaoning, Peoples R China
机构:
[1] Northeastern Univ, Ctr Mol Sci & Engn, Shenyang, Liaoning, Peoples R China
关键词:
Liquid crystal;
liquid crystal elastomer;
shape recovery;
polymer;
biodegradability;
MEMORY;
ACTUATION;
POLYMER;
LIGHT;
NANOCOMPOSITES;
NANOPARTICLES;
BEHAVIOR;
D O I:
10.1080/02678292.2017.1308022
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Novel shape recovery biodegradable liquid crystal (LC) elastomer is reported here for the first time. The method of synthesis of the shape memory biodegradable LC elastomer has been explored. During the reaction, the LC molecules are added to form LC polymers, and then cross-linking agent is added to form a cross-linked LC elastomer. The LC elastomer in this work is hydrophilic. In vitro degradation of the LC elastomer films in a buffer of pH 7.4 at 37 degrees C shows that the LC elastomer has good degradability. The biodegradable LC elastomer exhibits liquid crystalline behaviour and has shape memory ability. Its shape memory and actuating properties also have been studied. The reversible transition from liquid crystalline phase to isotropic phase is utilised as the switching mechanism for these stimuli-responsive materials. When reheating the LC elastomer to 120 degrees C, the shape will recover. [GRAPHICS] .
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收藏
页码:1701 / 1708
页数:8
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