Dependence of surface free energy on molecular orientation in polymer films

被引：17
|
作者：
Stachewicz, Urszula [1 ]
Li, Shuangwu [2 ]
Bilotti, Emiliano [1 ,2 ]
Barber, Asa H. [1 ,2 ]
机构：
[1] Queen Mary Univ London, Nanoforce Technol Ltd, London E1 4NS, England
[2] Queen Mary Univ London, Dept Mat, Sch Engn & Mat Sci, London E1 4NS, England
来源：
APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 09期
基金：
英国工程与自然科学研究理事会;
关键词：
contact angle; free energy; molecular orientation; polymer films; surface energy; LIQUID-CRYSTAL ALIGNMENT; ATOMIC-FORCE MICROSCOPY; POLYCARBONATE; SPECTROSCOPY; BLENDS; PLASMA;
D O I：
10.1063/1.3691186
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Surface free energy of mechanically drawn polycarbonate films was determined using contact angle measurements and shown to increase with orientation. The increase in polymer film surface free energy was attributed to increased polymer chain packing during orientation, supported by film density measurements, which provides enhanced intermolecular interactions. Surface free energy can therefore be increased by, or used to predict, polymer orientation. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3691186]
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页数：4
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