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首页> 外文期刊>journal of applied polymer science >Solution properties of methyl methacrylate–acrylonitrile copolymers
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Solution properties of methyl methacrylate–acrylonitrile copolymers

机译：Solution properties of methyl methacrylate–acrylonitrile copolymers

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AbstractCharacterization of methyl methacrylate‐acrylonitrile copolymers is done through viscosity, swelling, and differential refractometric studies. Viscosities of the copolymers and homopolymers were determined at 30, 40, and 50°C. The activation parameters of viscous flow, voluminosity, and shape factor were also calculated. The average shape factor was observed to be 2.5 ± 0.005 for all copolymer systems. Viscosity molecular weights were calculated, and from intramolecular expansion factor (α), it was observed that copolymers are less flexible than are homopolymers.dn/dcvalues obtained from differential refractometry are in good agreement with those calculated theoretically. © 1993 John WileySons

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