REINFORCEMENT OF POLYMER INTERFACES WITH RANDOM COPOLYMERS

被引：165

作者：

DAI, CA

DAIR, BJ

DAI, KH

OBER, CK

KRAMER, EJ

HUI, CY

JELINSKI, LW

机构：

[1] CORNELL UNIV,CTR MAT SCI,ITHACA,NY 14853

[2] CORNELL UNIV,DEPT THEORET & APPL MECH,ITHACA,NY 14853

[3] CORNELL UNIV,BIOTECHNOL PROGRAM,ITHACA,NY 14853

[4] CORNELL UNIV,COLL ENGN,ITHACA,NY 14853

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.73.2472

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that long random copolymers (monomer fraction f = 0.48) can be more effective than a long symmetric block copolymer in strengthening interfaces between immiscible homopolymers. The effectiveness of the random copolymer is inferred to result from each random copolymer crossing the interface multiple times, entangling with the homopolymer on either side of the interface; as f is increased from 0.48 to 0.77, the effectiveness decreases markedly as the copolymer becomes less entangled with the homopolymer (corresponding to the minor component in the copolymer) on one side of the interface.

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页码：2472 / 2475

页数：4

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