Premium
Rheological behavior of blends of poly(methyl methacrylate) (PMMA) and poly(acrylonitrile‐ stat ‐styrene)‐ graft ‐polybutadiene (ABS)
Author(s) -
Han Chang Dae,
Yang HengHuey
Publication year - 1987
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.1987.070330413
Subject(s) - materials science , polybutadiene , composite material , acrylonitrile , rheology , natural rubber , rheometry , methyl methacrylate , dynamic mechanical analysis , styrene , poly(methyl methacrylate) , dynamic modulus , polymer chemistry , polymer blend , polymer , copolymer
The rheological behavior of blends of poly(methyl methacrylate) (PMMA) and poly(acrylonitrile‐ stat ‐styrene)‐ graft ‐polybutadiene (ABS) was investigated using a cone‐and‐plate rheometer. The rheological properties measured were shear stress (σ 12 ), viscosity (η), and first normal stress difference ( N 1 ) as functions of shear rate ( \documentclass{article}\pagestyle{empty}\begin{document}$ \dot \gamma$ \end{document} ) in steady shearing flow, and storage modulus ( G ′) and loss modulus ( G ″) as functions of frequency (ω) in oscillatory shearing flow. It has been found that the rheological behavior of blends of ABS and PMMA was very similar to that of blends of poly(styrene‐ stat ‐acrylonitrile) (SAN) and PMMA, in that N 1 in logarithmic plots of N 1 versus σ 12 , and G ′ in logarithmic plots of G ′ versus G ″, vary regularly with blend composition. This has led us to conclude that the rubber particles that are grafted on an SAN resinous matrix in ABS resin plays only a minor role in influencing the compatibility of ABS/PMMA blends, and that the SAN chains attached to the surface of rubber particles, and the SAN matrix phase, play a major role in compatibilizing ABS resin with PMMA.