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

Mei Zhang; Tian Yu Xu; Yong Jia Liu; Da Hui Sun

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

Paper Titles

Bending Properties and Failure Mechanisms of Tapered 3D Braided Composites
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Preparation and Characteristics of Electrospinning PVA/PEG Composite Nanofibers
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Study on the Spinning Mechanism of a Novel Composite Yarn Made of Filaments and Short Fibers
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Fabrication and Radial Compressive Properties of the Biodegradable Woven Regeneration Conduits for Peripheral Nerve Repair
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Polyethylene Glycol (PEG) - Polyvinyl Alcohol Graft Copolymer System of Non-Isothermal Crystallization Kinetics
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The Study of Thermolplastic Elastomer Based on Polyamide 6: Preparation, Morphology and Mechanical Performance
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Yarn-Reduction Techniques and Microstructures of Tapered 3D Braided Composites
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Study of Novel Textile Conduits for Stent-Grafts: Approaches to Improve Their Water Permeability
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Evaluate Fabric Wrinkle Grade Based on Subtractive Clustering Adaptive Network Fuzzy Inference Systems
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 332-334Polyethylene Glycol (PEG) - Polyvinyl Alcohol...

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

Abstract:

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.