Characterization and mechanical properties of water-soluble poly(vinyl alcohol) grafted with lactic acid and glycolic acid
2001; Wiley; Volume: 80; Issue: 2 Linguagem: Inglês
10.1002/1097-4628(20010411)80
ISSN1097-4628
AutoresSt�phane J. Carlotti, O Giani‐Beaune, Fran�ois Schu�,
Tópico(s)Polymer Nanocomposites and Properties
ResumoPoly(vinyl alcohol) (PVA), fully or partially hydrolyzed, was reacted with D,L-lactic acid and glycolic acid in different conditions to synthesize polymers with pendant lactate and glycolate groups. Various degrees of grafting were obtained. 1H- and 13C-NMR analysis as well as thermal and mechanical methods were used to characterize the polymers. Such grafts lead to polymers with lower glass transition temperature, therefor enhancing the polymers solubility in cold water (10°C) and improving flexibility and elasticity as well as tear resistance. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 142–147, 2001
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