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Effect of copper metal powder and some of its salts on the aqueos polymerization of methyl methacrylate and on the tacticity of obtained polymers

✍ Scribed by A. B. Moustafa; M. A. Abd El-Ghaffar; A. S. Badran


Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
283 KB
Volume
35
Category
Article
ISSN
0323-7648

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✦ Synopsis


Methyl methacrylate was polymerized in the presence of copper metal powder and different copper salts. The average molecular weights and the polydispersity of the polymers were determined, confirming the radical mcchanism previously proposed for the system.

Der Einflub von metalischem Kupfer und einigen Kupfersalzen auf die Polymerisation von Methylmethacrylat in wabrigem

Medium tlnd auf die Taktizitat der erhaltenen Polymere Methylmethacrylat wurde in Gegenwart von metallischem Kupfer und verschiedenen Kupfersalzen polymerisiert. Die rel. Molekulmassen und die Polydispersitat der erhaltencn Polymere wurden bestimmt. Der fruher fur diese Systeme vorgeschlagene radikalische Mechanismus konnte bestatigt werden. Baumue fiemmauwcKoii Aeau u nercomopbcx coaeii fieau na noaufiepu3ayuw ntemu.imemarcpuaama e eoanoii cpeae u na marcmuunocmb nonywnnux noawepos CHHTeTH3IIPOBaH IIOJIEIMeTHJlMeTaKpHJlaT B IIPHCYTCTBIIII MeTaJIJIH9eCKOfi MeAH II pa3JIIIVHblX COJIefi MexII. OIIpene-JIeHbI OTHOCHTeJIbHbIe MOJIeKyJlfipHbIe MaCCbI II IIOJIHAMCnepCHOCTb IIOJIJ'seHHbIX ITOJIIIMepOB. nOATBepXneH paHW IIpeAJlOXeHHbIfi RJlH 3THX CHCTeM PaAIIKaJIbHbIB MeXaHH3M.


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## Abstract Previously, isotactic and atactic poly(methyl methacrylates) (PMMAs) were found to be miscible with poly(vinyl phenol) (PVPh) and poly(hydroxy ether of bisphenol‐A) (phenoxy) because all the prepared films were transparent and showed composition‐dependent glass transition temperatures (