STYRENE-TERMINATED POLY(VINYL ALCOHOL) MACROMONOMERS .2. FREE-RADICAL (CO)POLYMERIZATION STUDIES AND APPLICATION TO THE FUNCTIONALIZATION OF LATEX-PARTICLES

被引:23
作者
CHARLEUX, B [1 ]
PICHOT, C [1 ]
LLAURO, MF [1 ]
机构
[1] ECOLE NORMALE SUPER LYON,UNITE MIXTE BIOMERIEUX,CNRS,46 ALLEE ITALIE,F-69364 LYON 7,FRANCE
关键词
STYRENE-TERMINATED PVA; RADICAL (CO)POLYMERIZATION; LATEX FUNCTIONALIZATION;
D O I
10.1016/0032-3861(93)90201-K
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The kinetics of the radical-initiated solution homopolymerization of a styrene-terminated poly(vinyl alcohol) macromonomer with a degree of polymerization (DP) of 7-9 (A) and copolymerization with styrene (S) have been investigated at 60-degrees-C in deuterated dimethyl sulfoxide solution using azobisisobutyronitrile as initiator and H-1 n.m.r. as the analytical technique. It was found that the macromonomer exhibits a lower reactivity than styrene and a model monomer with DP = 0, which was confirmed by copolymerization with styrene (r(A) = 0.9 +/- 0.1 and r(S) = 1.3 +/- 0. 1). The hydrophilic macromonomer was then copolymerized onto seed polystyrene latex particles by a shot growth process, a more efficient surface yield being ensured by using polar comonomers like methyl methacrylate and acrylonitrile.
引用
收藏
页码:4352 / 4359
页数:8
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