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Polymerisationsauslösung mit substituierten ethanen, 6. Polymerisation von methylmethacrylat mit verschiedenen tetraphenylethanen

✍ Scribed by Błedzki, Andrezj ;Braun, Dietrich ;Titzschkau, Klaus


Publisher
Wiley (John Wiley & Sons)
Year
1983
Weight
447 KB
Volume
184
Category
Article
ISSN
0025-116X

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## Abstract 1,1,2,2‐Tetraphenyl‐1,2‐diphenoxyethane (TPPA) initiates at 70°C the polymerization of methyl methacrylate. In the first period oligomers of the type **1** with two phenoxydiphenylmethyl end groups (__P__~n~ ≈ 1 – 20) magnified image are formed by primary radical termination. These tele

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## Abstract The polymerisation of methyl methacrylate (MMA) by 1,1,2,2‐tetraphenyl‐1,2‐diphenoxyethane is characterised by three steps: during the initial period oligomers from MMA and initiator radicals are formed by primary radical termination. These oligomers produce free macroradicals and initi

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## Abstract The telechelics **1** from methyl methacrylate and 1,1,2,2‐tetraphenyl‐1,2‐diphenoxyethane, can be separated by adsorption chromatography. The structure of the dimers and trimers was identified by ^1^H NMR‐spectroscopy. The free radical oligomerization is a process in which the syndiota