✦ LIBER ✦

Polymeric photoinitiators bearing side-chain benzoyldiphenylphosphinoxide moieties for UV curable coatings

✍ Scribed by Luigi Angiolini; Daniele Caretti; Carlo Carlini

Publisher: John Wiley and Sons
Year: 1994
Tongue: English
Weight: 878 KB
Volume: 51
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1994.070510114

No coin nor oath required. For personal study only.

✦ Synopsis

Polymeric photoinitiators bearing side-chain benzoyldiphenylphosphinoxide moieties have been prepared by reacting poly (4-vinylbenzoic acid) or 4-vinylbenzoic acid/methyl methacrylate copolymers with thionyl chloride followed by methoxydiphenylphosphine. The activity of the above polymeric systems has been checked in the UV curing of the acrylic clear-coating formulation HDDA/BA and compared with that of the low molecular weight model 4-isopropylbenzoyldiphenylphosphinoxide. The stability to light and to hydrolytic conditions of the polymeric photoinitiators with respect to the model has also been tested.

The results obtained are discussed in terms of composition and structural features of these systems.

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