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Synthesis and Properties of Poly(carbonate-urethane) Consisting of Alternating Carbonate and Urethane Moieties by Bungo Ochiai; Haruka Amemiya; Hiroki Yamazaki; Takeshi Endo is a Materials Science article available to read on EtoBox.

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## Abstract Poly(carbonate‐urethane) consisting of alternating carbonate and urethane moieties (poly(HC‐MDI)) was prepared by polyaddition of 4,4′‐diphenylmethane diisocyanate (MDI) and a monocarbonate diol bis(3‐hydroxypropyl)carbonate (HC), prepared by hydrolysis of a six‐membered spiroorthocarbonate 1,5,7,11‐tetraoxa‐spiro[5.5]undecane. The polyaddition proceeds without concomitant side reactions including carbonate exchange reaction and affords the desired poly(carbonate‐urethane). The hydrolysis and thermal behaviors of poly(HC‐MDI) were compared with those of the analogous polyurethane carrying no carbonate structure (poly(ND‐MDI)) prepared from MDI and 1,9‐nonanediol (ND). Although the glass transition behaviors are almost identical, poly(HC‐MDI) is less crystalline than poly(ND‐MDI). Poly(HC‐MDI) is more susceptible to hydrolysis than poly(ND‐MDI) probably due to the higher polarity and the lower crystallinity. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 2802–2808, 2006

Who reads Synthesis and Properties of Poly(carbonate-urethane) Consisting of Alternating Carbonate and Urethane Moieties?

Author

Bungo Ochiai; Haruka Amemiya; Hiroki Yamazaki; Takeshi Endo

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)

Published

2006

Language

EN

Field

Materials Science (Physical Sciences)