PHOTOOXIDATION OF POLYDIMETHYLSILOXANE OILS AND RESINS .4. EFFECT OF PHENYL GROUPS

Authors
ISRAELI Y LACOSTE J CAVEZZAN J LEMAIRE J
Citation
Y. Israeli et al., PHOTOOXIDATION OF POLYDIMETHYLSILOXANE OILS AND RESINS .4. EFFECT OF PHENYL GROUPS, Polymer degradation and stability, 47(3), 1995, pp. 357-362
Citations number
10
Categorie Soggetti
Polymer Sciences
Journal title
Polymer degradation and stability → ACNP
ISSN journal
01413910
Volume
47
Issue
3
Year of publication
1995
Pages
357 - 362
Database
ISI
SICI code
0141-3910(1995)47:3<357:POPOAR>2.0.ZU;2-K
Abstract
Photooxidations at wavelengths longer than 300nm of polydimethylsiloxa ne (PDMS) containing various contents of MePh and Ph(2) groups have be en examined, both in the case of linear and crosslinked silicones. FTI R, UV and fluorescence spectroscopies reveal a slow photooxidation inv olving both scission and oxidation of the phenyl ring. No significant yellowing can be associated with the presence of the phenyl ring excep t in the case of short wavelength irradiation.