Premium
The oxidative degradation of styrenic copolymers: A comparison of photoproducts formation under natural and accelerated conditions
Author(s) -
Singh R. P.,
Vishwa Prasad A.,
Solanky S. S.
Publication year - 2002
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.10794
Subject(s) - ultimate tensile strength , polystyrene , weathering , materials science , fourier transform infrared spectroscopy , copolymer , polymer , composite material , degradation (telecommunications) , izod impact strength test , accelerated aging , polymer chemistry , chemical engineering , telecommunications , geomorphology , computer science , engineering , geology
Natural and accelerated weathering of polystyrene and high‐impact polystyrene were carried out in the present investigation. The structural changes in the polymer samples were characterized by using FTIR spectroscopy, tensile strength testing, and SEM spectroscopy. The natural exposure was conducted throughout the year. Rates of photooxidation were determined by measuring the evaluation in hydroxyl and carbonyl regions. The surface deterioration was revealed from SEM micrographs. The drop in tensile strength was also monitored. A correlation between natural and artificial weathering was considered for lifetime prediction in a short exposure time. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 1676–1682, 2002