SUPERLATTICE STRUCTURES IN MORPHOLOGIES OF THE ABC TRIBLOCK COPOLYMERS

被引：219

作者：

MOGI, Y ^{[1
]}

NOMURA, M ^{[1
]}

KOTSUJI, H ^{[1
]}

OHNISHI, K ^{[1
]}

MATSUSHITA, Y ^{[1
]}

NODA, I ^{[1
]}

机构：

[1] NAGOYA UNIV,DEPT APPL CHEM,CHIKUSA KU,NAGOYA,AICHI 46401,JAPAN

来源：

MACROMOLECULES | 1994年 / 27卷 / 23期

关键词：

D O I：

10.1021/ma00101a013

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Four types of morphologie, lamellar, ordered tricontinuous double-diamond (OTDD), cylindrical, and spherical structures, of isoprene (I)-styrene (S)-2-vinylpyridine (P) triblock copolymers having I and P block polymers with the same volume fractions, were studied by transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS). These studies revealed that the spherical structure has the packing manner of the CsCl type consisting of two spherical domains of I and P end-block polymers and the cylindrical structure, which consists of two kinds of cylindrical domains of end-block polymers, has the tetragonally-coarrayed pattern. Moreover, the OTDD structure proposed previously was confirmed by TEM observation of one (P domains) of the double-diamond frameworks in a film specimen stained with phosphotungstic acid. From these results, together with the TEM and SAXS studies on three-phase four-layer lamellar structure, we conclude that the morphologies of the triblock copolymers used in this work have the characteristics of superlattice structures.

引用

页码：6755 / 6760

页数：6

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