Layer-by-layer assembly of temperature-responsive polyelectrolytes and their applications in modifying rayon fibres

被引：0
作者：
Lu Hong [1 ]
Guan Yong [1 ]
Fox, Cory [1 ]
Xiao Huining [1 ]
机构：
[1] Univ New Brunswick, Dept Chem Eng, Fredericton, NB E3B 5A3, Canada
来源：
New Technologies in Non-Wood Fiber Pulping and Papermaking | 2006年
关键词：
acetalysis; cationization; turbidity; layer by layer; cellulose; surface morphology;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of temperature-responsive acetalyzed polyvinyl alcohol (APVA) and cationized APVA (CAPVA) with different chain length, degree of acetalysis and degree of cationization were prepared. H-1-NMR techniques were applied in order to assign the signals and to make the quantitative analysis of the copolymer composition possible. The turbidity of APVA and CAPVA aqueous solutions was investigated by turbidimeter. The turbidity of APVA and CAPVA solution was found to be opaque when the temperature went up. The phase transition is the result of partial acetalization of the hydroxyl group on PVA. The temperature-responsive fiber was made by assembling APVA and CAPVA multilayers on cellulose fiber. The AFM images of the surface reveal the changes in surface morphology induced by temperature.
引用
收藏
页码：295 / 300
页数：6
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