Solution properties of methyl methacrylate–acrylonitrile copolymers | Zendy

Asaduzzaman A. K. M. | Zendy; Rakshit A. K. | Zendy; Devi Surekha | Zendy

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Solution properties of methyl methacrylate–acrylonitrile copolymers

Author(s) -

Asaduzzaman A. K. M.,

Rakshit A. K.,

Devi Surekha

Publication year - 1993

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.1993.070471012

Subject(s) - copolymer , acrylonitrile , polymer chemistry , materials science , viscosity , refractometry , methyl methacrylate , swelling , intrinsic viscosity , methacrylate , chemical engineering , composite material , polymer , refractive index , optoelectronics , engineering

Characterization 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 / dc values obtained from differential refractometry are in good agreement with those calculated theoretically. © 1993 John Wiley & Sons, Inc.

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