ON THE DEFORMATION OF POLY(METHYL METHACRYLATE)-POLY(ETHYLENE OXIDE) BLENDS: A MOLECULAR CHARACTERIZATION BY SMALL-ANGLE NEUTRON SCATTERING.

被引:0
|
作者
Lefebvre, J.-M.R. [1 ]
Porter, Roger S. [1 ]
Wignall, G.D. [1 ]
机构
[1] Univ of Massachusetts, Amherst, MA,, USA, Univ of Massachusetts, Amherst, MA, USA
来源
Polymer Engineering and Science | 1986年 / 27卷 / 06期
关键词
PLASTICS; -; Deformation; POLYMERS; Anisotropy;
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摘要
The deformation behavior of miscible amorphous/amorphous PMMA/PEO poly(methyl methacrylate)/poly(ethylene oxide) blends was compared with that of pure PMMA. Small-angle neutron scattering experiments were performed on labeled systems made of PEO plus D-PMMA plus H-PMMA. Characteristic molecular parameters such as radius of gyration, Rg, molecular weight, M//w, and interaction parameter, chi , were extracted from the coherent scattering cross sections. Molecular anisotropy was measured on the solid state coextruded samples, and the observed drawing efficiency is compared with the results of shrinkage tests.
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页码:433 / 439
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