2-STAGE KINETICS OF SINGLE-CHAIN COLLAPSE - POLYSTYRENE IN CYCLOHEXANE

被引:215
作者
CHU, B [1 ]
YING, QC [1 ]
GROSBERG, AY [1 ]
机构
[1] RUSSIAN ACAD SCI,INST CHEM PHYS,MOSCOW 117977,RUSSIA
关键词
D O I
10.1021/ma00105a024
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Two-stage kinetics of single-chain collapse was clearly observed by using a thinnest capillary-tube cell with a wall thickness of 0.01 mm and a diameter of 5 mm for dynamic light scattering (DLS) measurements. Two relaxation times, tau(crum) for the crumpled globule state and tau(eq) for the compact globule state, were determined for the first time. Experimental DLS data measured in the coil-to-globule transition were compared with theoretical predictions.
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页码:180 / 189
页数:10
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