期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 16, 期 2, 页码 256-260出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2009.10.006
关键词
End-carboxylated polycaprolactone; Epoxidized natural rubber; Self-vulcanizable blends; Shape memory behavior; Thermomechanical properties
资金
- Sustainable Building Research Center of Hanyang University
- MEST [R11-2005-056-04004-0]
- National Research Foundation of Korea [R11-2005-056-04004-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Shape memory polymer networks were prepared from blends of end-carboxylated telechelic poly(epsilon-caprolactone) (XPCL) and epoxidized natural rubber (ENR). The XPCL/ENR blends can form cross linked structure via interchain reaction between the reactive groups of each polymer during molding at high temperature. Degree of crosslinking of the blend network and their thermomechanical properties were characterized by gel content measurement, DSC and DMA. We found that the degree of crosslinking and crystalline melting transition temperatures was dependent upon the blend compositions as well as the molecular weight of the XPCL segment in the blends. The blends showed a good shape memory behavior such as good shape fixity as well as a high final recovery rate when they exhibit crystalline melting transition with a sufficiently high degree of crosslinking. And the response temperature of the recovery was well matched with T(m) of the samples. (C) 2010 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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