Thermogravimetric characterisation of poly(methyl methacrylate) photopolymerised by colloidal cadmium sulphide(Article)
- aFaculty of Technology and Metallurgy, Belgrade University, Kariiegijeva 4, P.O.B. 494, 11001 Belgrade, Serbia
- bInstitute of Physical Chemistry, Hamburg University, Bundesstrasse 45, 20146 Hamburg, Germany
Abstract
The thermal stability of poly(methyl methacrylate) (PMMA) photopolymerised using colloidal cadmium sulphide as the photoinitiator was studied by thermogravimetry (TG) and differential TG (DTG). The thermal stability of the CdS initiated PMMA was greater than that of conventional radically polymerised PMMA and approached that of anionically prepared PMMA. The DTG curve of the CdS initiated PMMA was a composite of four peaks, three of which correspond to the three peaks observed in the DTG curve of standard radically prepared PMMA. It is suggested that the additional peak arises from a new mode of depolymerisation initiation, that is, from chain end unsaturation introduced into the polymer chain during polymerisation initiation with the colloidal CdS. © 1997 Akadémiai Kiadó.
Indexed keywords
| Engineering controlled terms: | Cadmium compoundsColloidsPhotochemical reactionsPolymerizationThermodynamic stabilityThermogravimetric analysis |
|---|---|
| Engineering uncontrolled terms: | Cadmium sulfideDifferential thermogravimetry (DTG) |
| Engineering main heading: | Polymethyl methacrylates |
- ISSN: 03684466
- Source Type: Journal
- Original language: English
- DOI: 10.1007/bf01987453
- Document Type: Article
- Publisher: Akademiai Kiado Rt.
Katsikas, L.; Faculty of Technology and Metallurgy, Belgrade University, Kariiegijeva 4, P.O.B. 494, Serbia
© Copyright 2020 Elsevier B.V., All rights reserved.
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