ISSN:
0003-3146
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Description / Table of Contents:
Es wurde die durch 5wertiges Vanadium induzierte Pfropfcopolymerisation von Methylmethacrylat auf Nylon 6 untersucht. Die Pfropfausbeute sowie der Gesamtumsatz wurden in Abhängigkeit von der Vanadiumkonzentration, des Lösungsmittelgemisches sowie der Reaktionstemperatur bestimmt.
Notes:
Pentavalent vanadium ion (Vv)-induced graft polymerization of methyl methacrylate onto nylon 6 was investigated under a variety of conditions. Increasing the Vv-concentration up to 2 mmol/l was accompanied by an enhancement in grafting; the latter was not affected by further increase in Vv-concentration. Unlike grafting, the homopolymer and total conversion tended to increase by increasing Vv concentration. The graft yield enhanced significantly when the MMA-concentration was increased up to 3% further increase in MMA-concentration had no effect on grafting. Raising the polymerization temperature from 50° up to 70°C caused a significant increase in the rates of grafting, homopolymerization and total conversion. Using a solvent-water mixture as medium for polymerization affected considerably the magnitude of grafting. While using methyl alcohol, ethyl alcohol and acetone at any ratio in the solvent-water mixture resulted in decreased grafting, using an isopropyl alcohol-water mixture up to a ratio of 25 : 75 gave rise to increased grafting.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/apmc.1981.050960105
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