Star‐shaped condensation polymers: Synthesis, characterization, and blend properties

K. R. Gorda; D. G. Peiffer

首页> 外文期刊>journal of applied polymer science >Star‐shaped condensation polymers: Synthesis, characterization, and blend properties

【24h】

Star‐shaped condensation polymers: Synthesis, characterization, and blend properties

机译：Star‐shaped condensation polymers: Synthesis, characterization, and blend properties

获取原文

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

AbstractA series of ϵ‐caprolactone linear and star polymers were prepared and characterized in order to determine the effect of the star architecture (i.e., star number and arm length) on the morphology of these semicrystalline polymers. A spherulitic morphology was found in all the polymers investigated. However, for six arm stars containing low degrees of polymerization, it appears that the star core dominates its morphological behavior (presumably due to its relatively high volume fraction). The star core effects, however, are markedly reduced in star polymers were the arms contain higher degrees of polymerization.The impact of the star core was further explored by investigating several poly(ϵ‐caprolactone) (PCL):styrene–acrylontrile copolymers (SAN) blends. In all instances, miscible blends were the result because a single compositionally dependent glass‐transition temperature (Tg) was observed. A moderate elevation in theTgof the star‐shaped polymers does occur, however, compared to their linear analogs. This effect is presumably due to the inability of the SAN chains to completely mix with all segments of star structure. © 1993 John Wil

著录项

来源
《journal of applied polymer science》 |1993年第11期|1977-1983|共页
作者
K. R. Gorda; D. G. Peiffer;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词

Star‐shaped condensation polymers: Synthesis, characterization, and blend properties

摘要

著录项

相关主题

期刊订阅