期刊
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
卷 51, 期 1, 页码 65-70出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2011.617404
关键词
Cross-linking; Functionalization of polymers; Poly(vinyl alcohol); Thermal properties
Poly(vinyl alcohol) (PVA) was structurally modified by the reaction of hydroxyl groups with 4-maleimidophenyl isocyanate (MPI). The substitution degree of the modified PVA was determined by H-1-NMR spectra and varied in the range 7.7 and 34.4%. Structures of polymers were confirmed by ATR-FTIR and H-1-NMR spectroscopy and properties were studied by thermal and mechanical analysis (dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis and stress-strain). By heating of modified PVA at 200 degrees C, the glass transition temperature and modulus were improved.
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