Laser-controlled association of poly(N-vinylcarbazole) in organic solvents: Radiation pressure effect of a focused near-infrared laser beam

被引:38
作者
Borowicz, P
Hotta, J
Sasaki, K
Masuhara, H
机构
[1] OSAKA UNIV, DEPT APPL PHYS, SUITA, OSAKA 565, JAPAN
[2] POLISH ACAD SCI, INST PHYS CHEM, PL-01224 WARSAW, POLAND
关键词
D O I
10.1021/jp9711149
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Microassociation of poly(N-vinylcarbazole) by a focused near-infrared laser beam (cw-YAG, 1064 nm) was first demonstrated in organic solvents. Investigations were made in cyclohexanone and N,N-dimethylformamide, where only the radiation force is responsible for formation of the micrometer-sized particle. The following conditions of the formation process were examined for elucidating the mechanism: polymer association as a function of the concentration (range 3.5-6.8 wt %), the relation between the trapping laser power and the time of condensation, and the influences of the temperature and the solvent properties upon the formation process.
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页码:5900 / 5904
页数:5
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