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(2,6-Diphenyl) phenyl methacrylate—2. Radical copolymerization with methyl methacrylate. The Tgs of its copolymers with an addendum on the polymerization of (2,6-diphenyl) phenyl acrylate

✍ Scribed by Y. Yong Tan; Gert O.R. Alberda van Ekenstein

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
317 KB
Volume
30
Category
Article
ISSN
0014-3057

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✦ Synopsis

A~tract--The radical copolymerization of (2,6-diphenyl) phenyl methacrylate (1) with methyl methacrylate in DMF with AIBN at 70°C has the reactivity ratios rj = 0.071 and r 2 = 1.42, from which Q~ = 1.45 and e L = 1.20. The copolymers had M,s in the range of 10,000-40,000 and Tgs ranging from 406 to 480 K from which the hypothetical Tg for poly-1 was deduced as 500 K (227°C). Unlike 1, (2,6-diphenyl) phenyl acrylate could be polymerized to oligomers with M n of the order of 2500.

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