Premium
The surface orientation of polystyrene measured by liquid contact angle
Author(s) -
Wang LiHui,
Porter Roger S.
Publication year - 1983
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1983.070280417
Subject(s) - contact angle , polystyrene , materials science , birefringence , anisotropy , dichroic glass , orientation (vector space) , composite material , surface (topology) , optics , polymer , nanotechnology , geometry , physics , mathematics
Abstract The surface contact angle of glycerol and of water on polystyrene (PS) films has been found to depend on the extent of uniaxial draw for atactic PS. The contact angle depends on direction for the smooth films of PS drawn by solid state coextrusion. Results as a function of draw ratio to values over 4 on these noncrystalline PS samples, M w = 6 × 10 5 , have also been interrelated with other measures of orientation such as the anisotropy of surface and bulk properties measured, respectively, by dichroic reflectance infrared spectroscopy and by birefringence.