A thermally induced transition from a body-centred to a face-centred cubic lattice in a diblock copolymer gel

被引：51

作者：

Hamley, IW ^{[1
]}

Pople, JA

Diat, O

机构：

[1] Univ Leeds, Sch Chem, Leeds LS2 9JT, W Yorkshire, England

[2] European Synchrotron Radiat Facil, F-38042 Grenoble, France

来源：

COLLOID AND POLYMER SCIENCE | 1998年 / 276卷 / 05期

关键词：

block copolymers; micelles; shearing; rheology; small angle scattering;

D O I：

10.1007/s003960050265

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A transition from a body-centred cubic structure at room temperature to a face-centred cubic structure at higher temperature has been observed in a solution of a poly(oxyethylene)-poly(oxybutylene) diblock copolymer. The ordered micellar structures were confirmed using small-angle X-ray scattering by preparing oriented domains via steady shearing in a Couette cell. The effect of shear generating highly oriented, twinned cubic domains is discussed.

引用

页码：446 / 450

页数：5

共 22 条

[1] SHEAR-INDUCED MELTING [J].

ACKERSON, BJ ;

CLARK, NA .

PHYSICAL REVIEW LETTERS, 1981, 46 (02) :123-126

[2] SHEAR INDUCED ORDER AND SHEAR PROCESSING OF MODEL HARD-SPHERE SUSPENSIONS [J].

ACKERSON, BJ .

JOURNAL OF RHEOLOGY, 1990, 34 (04) :553-590

[3] BLOCK COPOLYMER THERMODYNAMICS - THEORY AND EXPERIMENT [J].

BATES, FS ;

FREDRICKSON, GH .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1990, 41 (01) :525-557

[4] The shear-induced transition between oriented textures and layer-sliding-mediated flows in a micellar cubic crystal [J].

Berret, JF ;

Molino, F ;

Porte, G ;

Diat, O ;

Lindner, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (47) :9513-9517

[5] HIGH-BRILLIANCE BEAMLINE AT THE EUROPEAN SYNCHROTRON-RADIATION FACILITY [J].

BOSECKE, P ;

DIAT, O ;

RASMUSSEN, B .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1995, 66 (02) :1636-1638

[6] RHEOLOGICAL CONSEQUENCES OF MICROSTRUCTURAL TRANSITIONS IN COLLOIDAL CRYSTALS [J].

CHEN, LB ;

ACKERSON, BJ ;

ZUKOSKI, CF .

JOURNAL OF RHEOLOGY, 1994, 38 (02) :193-216

[7] GELATION OF MICELLAR SOLUTIONS OF DIBLOCK-COPOLY(OXYETHYLENE/OXYBUTYLENE) IN AQUEOUS K2SO4 - AN INVESTIGATION OF EXCLUDED-VOLUME EFFECTS [J].

DENG, NJ ;

LUO, YZ ;

TANODEKAEW, S ;

BINGHAM, N ;

ATTWOOD, D ;

BOOTH, C .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1995, 33 (07) :1085-1096

[8] Orientation and twins-separation in a micellar cubic crystal under oscillating shear [J].

Diat, O ;

Porte, G ;

Berret, JF .

PHYSICAL REVIEW B, 1996, 54 (21) :14869-14872

[9]

DIAT O, 1993, J PHYS II, V3, P1427, DOI 10.1051/jp2:1993211

[10] Dynamics of block copolymers: Theory and experiment [J].

Fredrickson, GH ;

Bates, FS .

ANNUAL REVIEW OF MATERIALS SCIENCE, 1996, 26 :501-550

← 1 2 3 →