ACCUMULATION OF MONOMOLECULAR POLYSTYRENE PARTICLES FROM A WATER-SURFACE ONTO A SUBSTRATE

被引:21
作者
KUMAKI, J [1 ]
机构
[1] SOPHIA UNIV,DEPT CHEM,RES DEV CORP JAPAN,CHIYODA KU,TOKYO 102,JAPAN
关键词
D O I
10.1002/polb.1990.090280109
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Monomolecular particles of polystyrene (Mw/Mn = 1.04, Mw = 3.84 ? 106) formed by spreading of a dilute solution in benzene over a water surface were successfully accumulated onto a hydrophobic substrate by the horizontal lifting method. The accumulation was quantitative (up to 66 layers) to give a multilayer film. The substrates used were silicon single crystals, quartz coated with an iron(III) stearate monolayer, and poly(methylmethacrylate) plates. The film contained voids amounting to 20‐30 vol%. The surface structure observed by transmission electron microscopy clearly showed a multilayer, particle structure. These facts indicate that the molecules exist as monomolecular particles in the film. The film should be a suitable material to study properties of polymeric monomolecules in a very unusual state as compared with the ordinary solid. Copyright ? 1990 John Wiley & Sons, Inc.
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页码:105 / 111
页数:7
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