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Preparation and rapid degradation of nontoxic biodegradable polyurethanes based on poly(lactic acid)-poly(ethylene glycol)-poly(lactic acid) andl-lysine diisocyanate

โœ Scribed by Wang, Zhigao ;Yu, Lunquan ;Ding, Mingming ;Tan, Hong ;Li, Jiehua ;Fu, Qiang

Book ID
120037104
Publisher
The Royal Society of Chemistry
Year
2011
Tongue
English
Weight
493 KB
Volume
2
Category
Article
ISSN
1759-9954

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Study on biodegradable polymer materials
Study on biodegradable polymer materials based on poly(lactic acid). I. Chain extending of low molecular weight poly(lactic acid) with methylenediphenyl diisocyanate
โœ Wei Zhong; Jinjie Ge; Zhenyu Gu; Wenjun Li; Xin Chen; Yi Zang; Yuliang Yang ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 163 KB ๐Ÿ‘ 2 views

Methylenediphenyl diisocyanate (MDI) was used as the chain extender for low molecular weight poly(lactic acid) (PLA) to produce high molecular weight biodegradable polymer material with a better heat resistance. PLA prepolymer with a number-average molecular weight (M n ) of 5800 and a weight-averag