POLYMERIZATION STUDIES - THE APPLICATION OF DIFFERENTIAL THERMOGRAVIMETRIC ANALYSIS

Citation
Ig. Popovic et al., POLYMERIZATION STUDIES - THE APPLICATION OF DIFFERENTIAL THERMOGRAVIMETRIC ANALYSIS, Journal of applied polymer science, 50(8), 1993, pp. 1475-1482
Citations number
14
Categorie Soggetti
Polymer Sciences
ISSN journal
00218995
Volume
50
Issue
8
Year of publication
1993
Pages
1475 - 1482
Database
ISI
SICI code
0021-8995(1993)50:8<1475:PS-TAO>2.0.ZU;2-N
Abstract
The application of differential thermogravimetric analysis (DTGA) to t he study of polymerization mechanisms is illustrated using as examples the radical polymerization of di-n-alkyl itaconates and methyl methac rylate (MMA). Five poly (di-n-alkyl itaconates) were prepared in bulk, both in the presence and absence of n -dodecyl mercaptan and in solut ion using AIBN as initiator. The poly(methyl methacrylate) (PMMA) was photoinitiated using colloidal CdS as a photosensitizer. The thermal p roperties of the resulting polymers are described in terms of the prop osed polymerization mechanisms. The advantages and disadvantages of DT GA for the identification of thermally weak structures are discussed. (C) 1993 John Wiley & Sons, Inc.