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Poly(ester amide)s based onl-lactic acid oligomers and glycine: the role of the central unit of thel-lactic acid oligomers and their molecular weight in the poly(ester amide)s properties

✍ Scribed by Fonseca, Ana C.; Coelho, Jorge F. J.; Gil, M. H.; Simões, P. N.

Book ID
127208704
Publisher
Springer
Year
2014
Tongue
English
Weight
706 KB
Volume
71
Category
Article
ISSN
0170-0839

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✍ Kari Hiltunen; Jukka V. Seppälä; Mika Härkönen 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 198 KB 👁 2 views

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.