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Nitric acid digestion and crystallinity of ethylene–vinyl acetate copolymers
Author(s) -
Barlow A.,
Campbell R. C.
Publication year - 1967
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.1967.070111016
Subject(s) - crystallinity , copolymer , ethylene , branching (polymer chemistry) , vinyl acetate , nitric acid , ethylene vinyl acetate , polymer chemistry , polyethylene , materials science , chemistry , organic chemistry , polymer , catalysis , composite material
Nitric acid digestion studies of ethylene–vinyl acetate copolymers indicated that copolymers containing identical amounts of vinyl acetate but varying in melt index differed in crystallinity. These results were confirmed by x‐ray analysis. The differences in crystallinity were interpreted as showing a variation in the degree of short‐chain branching in the polyethylene segments of the copolymer chain. This variation was correlated with the conditions of synthesis.