Journal
POLYMER INTERNATIONAL
Volume 51, Issue 12, Pages 1348-1352Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/pi.1023
Keywords
star-shaped polymers; step polymerization; thermal stability; triol segment
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Star-shaped polymers with two different core sizes were prepared by step polymerization. Their structures were confirmed by FTIR and H-1 NMR studies. X-ray diffraction studies showed highly crystallized patterns for this type of star polymer. Thermogravimetric analysis curves displayed an excellent thermal stability and a two-step degradation mechanism for these materials. In addition, it indicated that if the length of the triol segment were longer, the degradation temperature at 10% weight loss would be higher. (C) 2002 Society of Chemical Industry.
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