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Effect of the nature and molar mass of oligoesters of saturated α,ω-dicarboxylic acids on the structure and properties of segmented polyester urethanes

✍ Scribed by V.A. Vilenskii; Yu.Yu. Kercha; L.A. Kosenko; D.F. Yakovenko; V.I. Shtompel


Book ID
116049430
Publisher
Elsevier Science
Year
1989
Weight
515 KB
Volume
31
Category
Article
ISSN
0032-3950

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A two-step process for lactic acid polymerization is studied: in the first step the lactic acid is condensation-polymerized to a low-molecular-weight hydroxylterminated prepolymer; and then the molecular weight is raised by joining prepolymer chains together using diisocyanate as the chain extender.