Effect of Molecular Architecture on Conformational Relaxation of Polymer Chains at Interfaces

被引：4
|
作者：
Nguyen, Hung K. [1 ]
Kawaguchi, Daisuke [1 ,2 ]
Tanaka, Keiji [1 ,2 ,3 ]
机构：
[1] Kyushu Univ, Dept Appl Chem, Fukuoka 8190395, Japan
[2] Kyushu Univ, Ctr Polymer Interface & Mol Adhes Sci, Fukuoka 8190395, Japan
[3] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2020年 / 41卷 / 21期
关键词：
adhesion; nanocomposites; thin films; GLASS-TRANSITION TEMPERATURE; PARTIAL TUBE DILATION; STAR POLYMER; POLYSTYRENE; ADSORPTION; FILMS; POLYISOPRENE; SUBSTRATE; DYNAMICS; SURFACES;
D O I：
10.1002/marc.202000096
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Dynamics of polymer chains near an interface with an inorganic material are believed to strongly affect the physical properties of polymers in nanocomposites and thin films. An effect of molecular architecture on the conformational relaxation behavior of polystyrene (PS) chains at the quartz interface using sum-frequency generation spectroscopy is reported here. The relaxation dynamics of chains in direct contact with the quartz interface is slower with a star-shaped architecture than that with its linear counterpart. The extent of the delay becomes more pronounced with increasing number of arms. This can be explained in terms of the superior interfacial activity to the quartz surface for the star-shaped PS.
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页数：5
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