Cyclodextrins in polymer synthesis:: Steric retardation of the free-radical polymerization in aqueous medium of 4-vinylbenzaldehyde/methylated β-cyclodextrin complex

被引：0
|
作者：
Heinenberg, M [1 ]
Ritter, H [1 ]
机构：
[1] Univ Dusseldorf, Inst Organ Chem & Makromol Chem 2, D-40225 Dusseldorf, Germany
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2002年 / 203卷 / 12期
关键词：
beta-cyclodextrin; inclusion chemistry; particle size distribution; retardation effect; p-vinylbenzaldehyde;
D O I：
10.1002/1521-3935(200208)203:12<1804::AID-MACP1804>3.0.CO;2-3
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
4-Vinylbenzaldehyde (3) was complexed with methylated beta-cyclodextrin (4) (me-beta-CD) yielding the water soluble host-guest complex (5). Radical polymerization was initiated with K2S2O8/Na2S2O5 in water at room temperature and also at 70degreesC. The polymerization tendency of this complex (5) is lower compared to the styrene/me-beta-Cd-complex (7). Also copolymerizations of 5 and complexed styrene (6) at these two temperatures were carried out and the results are discussed in respect to the behavior of the homopolymerization. The resulting polymers (8a-k, 9a, 9b) were characterized by SEC-measurements and H-1 NMR spectroscopy. TEM-measurements of the homopolymers 8f and 8k show differences in the particle size depending on the amount of me-beta-CD.
引用
收藏
页码：1804 / 1810
页数：7
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