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首页> 外文期刊>Physica, B. Condensed Matter >Microphase-separated interface of a two-component triblock copolymer with a lamellar structure
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Microphase-separated interface of a two-component triblock copolymer with a lamellar structure

机译：具有层状结构的两组分三嵌段共聚物的微相分离界面

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Conformations of middle block chains of 2-vinylpyridine-styrene-2-vinylpyridine (PSP) triblock copolymers with lamellar microphase-separated structures were investigated by small-angle neutron scattering. The radii of gyration of the middle block chains were evaluated in two directions parallel and perpendicular to the lamellar interface. It was found that the middle block chains were elongated along the direction normal to lamellar interface irrespective of the volume fraction of the S-block chain, phi(S), but also found that the degree of deformation was decreasing with increasing phi(S). Further, lamellar interfacial structure of a PSP triblock copolymer with phi(S) of 0.50 was investigated by measuring specular neutron reflection. The interfacial profile was well described by an error function with its full-width at half-maximum value of 4.0 nm, which is fairly close to the value obtained for styrene-2-vinylpyridine diblock copolymers. (C) 1998 Elsevier Science B.V. All rights reserved. [References: 7]
机译：通过小角度中子散射研究了具有层状微相分离结构的2-乙烯基吡啶-苯乙烯-2-乙烯基吡啶（PSP）三嵌段共聚物的中间嵌段链的构型。在平行和垂直于层状界面的两个方向上评估了中间嵌段链的回转半径。发现中间嵌段链沿垂直于层状界面的方向伸长，而与S嵌段链的体积分数phi（S）无关，但还发现变形程度随phi（S）的增加而减小。此外，通过测量镜面中子反射研究了phi（S）为0.50的PSP三嵌段共聚物的层状界面结构。界面分布由误差函数很好地描述，其半峰全宽为4.0 nm，这非常接近于苯乙烯-2-乙烯基吡啶二嵌段共聚物的值。 （C）1998 Elsevier Science B.V.保留所有权利。 [参考：7]

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