SMALL-ANGLE NEUTRON-SCATTERING AND NEUTRON REFLECTOMETRY STUDY OF A MODEL GRAFT COPOLYMER

被引:4
作者
DOZIER, WD
THIYAGARAJAN, P
PEIFFER, DG
RABEONY, M
LIN, MY
AGRAWAL, G
WOOL, RP
机构
[1] EXXON RES & ENGN CO,ANNANDALE,NJ 08801
[2] NIST,DIV REACTOR RADIAT,GAITHERSBURG,MD 20899
[3] UNIV ILLINOIS,DEPT MAT SCI & ENGN,URBANA,IL 61801
基金
美国国家科学基金会;
关键词
GRAFT COPOLYMER; SANS; NEUTRON REFLECTIVITY;
D O I
10.1016/0032-3861(94)90428-6
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A model graft copolymer material consisting of polystyrene (PS) chains grafted onto a poly(ethyl acrylate) backbone was studied by small-angle neutron scattering (SANS) and neutron reflectivity. This 28 wt% PS graft material exhibited a lamellar phase morphology; it also produced abnormal butterfly isointensity patterns in SANS when uniaxially strained. It is believed that the polydispersity in structure of the copolymers is critical in producing the unexpected lamellar morphology.
引用
收藏
页码:3116 / 3118
页数:3
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