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Biodegradable polyurethanes may be used in the fabrication of plastic films which can replace common films prepared from nondegradable polymers such as polyethylene and polypropylene. Prepolymers were synthesized from poly(butylene succinate) polyol (PBS, M n 1650), poly(ethylene glycol) (PEG, M n 1000), and 4,4'-dicyclohexylmethane diisocyanate, and reacted with 1,4-butanediol chain...
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