Polyethylene Glycol (PEG) - Polyvinyl Alcohol Graft Copolymer System of Non-Isothermal Crystallization Kinetics

Abstract:

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The confined of PEG in PVA-g-PEG graft copolymers was investigated by differential scanning calorimetry. The crystallization kinetics was discussed by several methods. The results showed that the lower temperature peak (Tp) shifted to the lower temperature and its peak intensity also decreased with increasing the cooling rates, t1/2 decreased and G increased. The Tp of graft copolymers were lower than pure PEG and t1/2 of which were higher than pure PEG. The graft ratio had litter influence on t1/2. The results also showed that both Jeziorny method and the new method combing the Avrami equation described this system very well.

Info:

Periodical:

Advanced Materials Research (Volumes 332-334)

Edited by:

Xiaoming Qian and Huawu Liu

Pages:

1485-1489

DOI:

10.4028/www.scientific.net/AMR.332-334.1485

Citation:

M. Zhang et al., "Polyethylene Glycol (PEG) - Polyvinyl Alcohol Graft Copolymer System of Non-Isothermal Crystallization Kinetics", Advanced Materials Research, Vols. 332-334, pp. 1485-1489, 2011

Online since:

September 2011

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Price:

$35.00

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