Fractionated crystallization and fractionated melting behaviors of poly(ethylene glycol) induced by poly(lactide) stereocomplex in their block copolymers and blends
聚丙交酯立体络合物诱导的聚乙二醇在其嵌段共聚物和共混物中的分馏结晶和分馏熔融行为
作者: Jianna BaoXiaolei DongShichang ChenWangyang LuXianming ZhangWenxing Chen
作者单位: 1School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
刊名: Polymer, 2020, Vol.190
来源数据库: Elsevier Journal
DOI: 10.1016/j.polymer.2020.122189
关键词: Fractionated crystallizationFractionated meltingStereocomplexPoly(ethylene glycol)Block copolymerPoly(lactide)
英文摘要: Abstract(#br)Stereocomplexation has been an effective way to improve the physical properties of block copolymers or blends. However, the effect of stereocomplexation on the confined and fractionated crystallization of other crystallizable block has not been comprehensively investigated so far. In this work, we used poly( l -lactide) (PLLA) and poly( d -lactide) (PDLA) as stereocomplexable higher melting component and studied the confined crystallization and melting behaviors of poly(ethylene glycol) (PEG) in their block copolymers and blends. Unexpectedly, marked fractionated crystallization and fractionated melting behaviors of PEG component occurred during the two-step crystallization process, because of the constrained effect of the early formed stereocomplex (SC) crystals. The...
全文获取路径: Elsevier  (合作)
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影响因子:3.379 (2012)

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关键词翻译
关键词翻译
  • lactide 交酯
  • block 滑车
  • ethylene 乙烯
  • glycol 甘醇
  • induced 感应的
  • poly 
  • melting 熔化
  • their 他们的
  • fractionated 分馏的