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学科主题: 高分子化学 ; 氟化学
题名: Synthesis and solution properties of fluorocarbon-modified poly(N,N-dimethylacrylamide)
其他题名: 氟碳基团改性聚N,N-二甲基丙烯酰胺的合成和性质研究
作者: Chen J(陈洁) ; Du LB(杜立斌) ; Zhang YX(章云祥) ; Hogen-Esch, Thieo E. ; Jiang M(江明)
通讯作者: 章云祥
刊名: Polym. Int.
发表日期: 2001
卷: 50, 期:1, 页:148-156
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所高分子材料研究室; 南加州大学化学系; 复旦大学高分子科学系
英文摘要: Poly(N,N-dimethylacrylamide)(PDMA) contaiing perfluoro-octyl pendent groups was prepared by solution polymerization of N,N-dimethylacrylamide in benzene with 0.16-1.25 mol% 2-(N-ethylperfluoro-octane sulfonamido) ethyl acrylate (FX-13^R) or 2-(N-ethylperfluoro-octane sulfonamido) ethyl methacrylate (FX-14^R). The copolymer intrinsic viscosity strongly decreases with increasing comonomer contert due to intramolecular association. However,the Huggins constant increases more than 40-fold with increasing comonomer contert, indicating that intermolecular association increases with increasing comonomer contert. Strong Brookfiedldviscosity enhancements are observed above a critical copolymer concentration varying between 0.5 and 2.0wt% depending on comonomer type and content. Some of the copolymers show pseudoplastic behaviour whereas others show shear-thickening or both types of behaviour. These observations are consistent with competing inter-and intramolecular micellar association. Fluorescence studies using a perfluorocarbonsubstituted pyrene as a probe indicate the formation of hydrophobic microdomanins formed by the association of perfluorocarbon groups.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000166642800022
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/24505
Appears in Collections:高分子材料研究室_期刊论文

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Recommended Citation:
Chen J,Du LB,Zhang YX,et al. Synthesis and solution properties of fluorocarbon-modified poly(N,N-dimethylacrylamide)[J]. Polym. Int.,2001,50(1):148-156.
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