Surface feature size of spin cast PS/PMMA blends

被引：73

作者：

Ton-That, C ^{[1
]}

Shard, AG ^{[1
]}

Bradley, RH ^{[1
]}

机构：

[1] Robert Gordon Univ, Sch Appl Sci, Mat Surface & Interfaces Grp, Aberdeen AB25 1HG, Scotland

来源：

POLYMER | 2002年 / 43卷 / 18期

关键词：

polymer blend; dewetting; surface enrichment;

D O I：

10.1016/S0032-3861(02)00333-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thin films of polystyrene (PS)/polymethylmethacrylate (PNMA) blends have been spin cast on mica from chloroform solutions. When the concentration of PMMA in the casting solution is less than that of PS a pitted morphology is formed. The average sizes of the pits are shown to increase with both the total concentration of the casting solution and the relative concentration of PMMA. The change in pit size is explained in terms of incomplete dewetting of a PMMA solution from an underlying PS solution. For a given ratio of PMMA/PS the average pit diameters appear to increase linearly with the square of the film thickness, the gradient of which is dependent on the film composition. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：4973 / 4977

页数：5

共 28 条

[1] Topography and surface composition of thin films of blends of polystyrene with brominated polystyrenes: Effects of varying the degree of bromination and annealing
Affrossman, S
O'Neill, SA
Stamm, M
[J]. MACROMOLECULES, 1998, 31 (18) : 6280 - 6288
[2] Beamson G., 1992, ADV MATER, DOI DOI 10.1002/ADMA.19930051035
[3] MOTIONS OF DROPLETS ON HYDROPHOBIC MODEL SURFACES INDUCED BY THERMAL-GRADIENTS
BRZOSKA, JB
BROCHARDWYART, F
RONDELEZ, F
[J]. LANGMUIR, 1993, 9 (08) : 2220 - 2224
[4] MISCIBILITY OF BISPHENOL-A POLYCARBONATE WITH POLY(METHYL METHACRYLATE)
CHIOU, JS
BARLOW, JW
PAUL, DR
[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1987, 25 (07) : 1459 - 1471
[5] Surface analysis of biodegradable polymer blends of poly(sebacic anhydride) and poly(DL-lactic acid)
Davies, MC
Shakesheff, KM
Shard, AG
Domb, A
Roberts, CJ
Tendler, SJB
Williams, PM
[J]. MACROMOLECULES, 1996, 29 (06) : 2205 - 2212
[6] Adhesion of mammalian cells to polymer surfaces: from physical chemistry of surfaces to selective adhesion on defined patterns
Dewez, JL
Lhoest, JB
Detrait, E
Berger, V
Dupont-Gillain, CC
Vincent, LM
Schneider, YJ
Bertrand, P
Rouxhet, PG
[J]. BIOMATERIALS, 1998, 19 (16) : 1441 - 1445
[7] Polymers as dewetting agents
Fondecave, R
Wyart, FB
[J]. MACROMOLECULES, 1998, 31 (26) : 9305 - 9315
[8] Garbassi F, 1998, POLYM SURFACES PHYSI, P291
[9] GARBASSI F, 1998, POLYM SURFACES PHYSI, P49
[10] Influence of the blend compatibility on the morphology of thin polymer blend films
Gutmann, JS
Müller-Buschbaum, P
Schubert, DW
Stribeck, N
Stamm, M
[J]. JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 1999, B38 (5-6): : 563 - 576

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