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Radiation stability of PTFE with different crystallinity

✍ Scribed by Xiaoguang Zhong; Li Yu; Wenwei Zhao; Yuefang Zhang; Jiazhen Sun


Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
271 KB
Volume
48
Category
Article
ISSN
0021-8995

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A series of polycaprolactone/4,4'-diphenylmethane diisocyanate/l,4-butanediol (PCL/MDI/ BDO) segmented polyurethanes of different compositions was synthesized by solution po- lymerization. The molecular weight of PCL diols used was in the range of 1600-7000. The crystallinity and morphology of these