期刊
APPLIED SCIENCES-BASEL
卷 5, 期 4, 页码 840-850出版社
MDPI
DOI: 10.3390/app5040840
关键词
poly(vinyl alcohol); chemical modification; click chemistry; green chemistry
类别
资金
- Green Fibre Network
- Natural Science and Engineering Research Council of Canada (NSERC)
Partial chemical modification of poly(vinyl alcohol) (PVA) was performed through tosylation followed by azidation. Amine functional PVA was also prepared by grafting propargylamine using click chemistry reaction. Through this approach, a tosyl group (a good leaving group), azide group (a group used in click chemistry) and amine group (a group used for amidation) were attached to PVA polymer chains. The three chemical modifications were performed in water. FTIR and XPS analysis confirmed the chemical modification after each step. Thermogravimetric analysis (TGA) was used to study the thermal stability of the modified PVA.
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