TRANSESTERIFICATION IN POLYPHENYLSILSISQUIOXANE (PPSQ)/POLY ETHYLENE TEREPHTHALATE (PET) BLENDS*

LI Guizhi; SHI Lianghe; YE Meiling; ZHAO Chuntian; XU Mao

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TRANSESTERIFICATION IN POLYPHENYLSILSISQUIOXANE (PPSQ)/POLY ETHYLENE TEREPHTHALATE (PET) BLENDS*

Papers | Updated：2021-06-21

- TRANSESTERIFICATION IN POLYPHENYLSILSISQUIOXANE (PPSQ)/POLY ETHYLENE TEREPHTHALATE (PET) BLENDS*
- Vol. 13, Issue 4, Pages: 366-374(1995)
- Affiliations：
  
  1.   Polymer Physics Laboratory
  2.   Institute of Chemistry
  3.   Academia Sinica
  4.   Beijing Present Address: Department of Chemistry  ,100080
  5.   Shandong University
  6.   Jinan 250100
  7.   Beijing 100080
- Author bio：
- Funds：
- DOI：
  CLC： O631
- Published：20 December 1995
- Accepted：
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[1]李桂芝,施良和,叶美玲,赵春田,徐懋.TRANSESTERIFICATION IN POLYPHENYLSILSISQUIOXANE(PPSQ)/POLY ETHYLENE TEREPHTHALATE (PET) BLENDS[J].Chinese Journal of Polymer Science,1995,{4}(04):366-374.

LI Guizhi, SHI Lianghe, YE Meiling, et al. TRANSESTERIFICATION IN POLYPHENYLSILSISQUIOXANE (PPSQ)/POLY ETHYLENE TEREPHTHALATE (PET) BLENDS*[J]. 1995, 13(4): 366-374.
[1]李桂芝,施良和,叶美玲,赵春田,徐懋.TRANSESTERIFICATION IN POLYPHENYLSILSISQUIOXANE(PPSQ)/POLY ETHYLENE TEREPHTHALATE (PET) BLENDS[J].Chinese Journal of Polymer Science,1995,{4}(04):366-374. DOI：

LI Guizhi, SHI Lianghe, YE Meiling, et al. TRANSESTERIFICATION IN POLYPHENYLSILSISQUIOXANE (PPSQ)/POLY ETHYLENE TEREPHTHALATE (PET) BLENDS*[J]. 1995, 13(4): 366-374. DOI：

摘要

正

The chemical structure of copolymer formed in the transesterification of PPSQ/PET blendsduring melt-processing is deduced from the

H-NMR spectra. The transesterification extent ofthis blend is interpreted by the changes of crystalline melting peak in DSC thermograms of the in-soluble products containing unreacted PET and some block PPSQ segments. Effects of composi-tion of blend ladderlike regularity of PPSQ on the reaction extent have also been discussed.Inclusion of some block PPSQ segments in PET has no influence on the crystalline morphology ofPET.

Abstract

The chemical structure of copolymer formed in the transesterification of PPSQ/PET blendsduring melt-processing is deduced from the

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