Autor:	Lydie Pouliquen, Alain Lablache-Combier, Claude Loucheux, Xavier Coqueret
Rok vydání:	1992
Předmět:	chemistry.chemical_compound Acrylate Tertiary amine Chemistry Radical Siloxane Radical polymerization Polymer chemistry Benzophenone Copolymer Organic chemistry Photochemistry Acrylic acid
Zdroj:	Die Makromolekulare Chemie. 193:1273-1282
ISSN:	0025-116X
DOI:	10.1002/macp.1992.021930603
Popis:	Functional siloxane copolymers containing one or more ester groups derived from 2-benzoyl-benzoic acid (2-BBA), 4-dimethylaminobenzoic acid (4-DMABA) or acrylic acid, were synthetized. These polymers were employed to prepare novel photo-initiating systems based on the phenone/tertiary amine photogeneration of radicals. The influence of nature and relative amount of functional pendant units on the overall efficiency of the system mixed with an acrylate-based composition was examined by quantitative IR spectroscopy. By comparing the different polymeric systems to the low-molecular-weight analogues, one observes a neat polymer effect inducing a greater initiation efficiency, especially when a polysiloxane containing only 2-BBA ester groups is associated to free 4-DMABA esters in the photosensitive composition.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f55fa4f5477c0551bc242bf9439c1e65 https://doi.org/10.1002/macp.1992.021930603 Zobrazit plný text záznamu Plný text