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Graft copolymerization of 2‐methyl‐5‐vinyl pyridine to poly(ethylene terephthalate) fibres using a post‐radiation technique
Author(s) -
Hebeish A.,
Shalaby S. E.,
Bayazeed A. M.
Publication year - 1978
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1978.070221127
Subject(s) - grafting , copolymer , ethylene , polymer chemistry , materials science , polymerization , poly ethylene , pyridine , nuclear chemistry , chemistry , catalysis , polymer , organic chemistry , composite material
Abstract Radiation‐induced grafting of 2‐methyl‐5‐vinyl pyridine (MVP) to poly(ethylene terephthalate) fibers (PET) was investigated under a variety of conditions employing a post‐radiation technique. Over a range of a total dose of 1–10 Mrad, increasing the total dose from 1 up to 3 Mrad was accompanied by a significant enhancement in the extent and rate of grafting. Further increase in the total dose caused a decrease. The same situation was encountered with respect to MVP concentration (5%–10%) and polymerization temperature (75°–90°C). A MVP concentration of 8% and a temperature of 85°C constituted the optimal. Addition of copper sulfate at a concentration of 0.05 mmole/l. offset grafting. The effect of the said parameters on homopolymerization occurring during grafting was also investigated.