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Simultaneous, Time-Resolved, Saxs/Waxs Studies on Block Copoly(Ether-Urethane) Phase Behaviour

Published online by Cambridge University Press:  15 February 2011

W. Bras
Affiliation:
Netherlands Organisation for Scientific Research (NWO)
G. E. Derbyshire
Affiliation:
SERC Daresbury Laboratory, Warrington, WA4 4AD, UK
G. N. Greavest
Affiliation:
SERC Daresbury Laboratory, Warrington, WA4 4AD, UK
G. R. Mantt
Affiliation:
SERC Daresbury Laboratory, Warrington, WA4 4AD, UK
S. Naylor
Affiliation:
Manchester Materials Science Centre, UMIST, Grosvenor Street, Manchester M1 7HS, UK.
A. J. Ryan
Affiliation:
Manchester Materials Science Centre, UMIST, Grosvenor Street, Manchester M1 7HS, UK.
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Abstract

A new experimental technique for the characterisation of the thermal-morphological properties of materials has been developed at Daresbury. Many thermal events, for example melting endotherms, are signals of changes in morphology covering size scales from the atomic to the microscopic, that is Å to μm. There are obvious advantages in collecting both the wide angle (1-20Å) and small angle (20-1000Å) patterns simultaneously to unambiguously characterise such thermal events. The new apparatus comprises a Linkam hot-stage capable of controlled heating and cooling mounted in a combined SAXS/WAXS camera. The camera is equipped with a multiwire quadrant detector (SAXS) located 3.5 m from the sample position and a curved knifeedge detector (WAXS) that covers 120° of arc at a radius of 0.4 m. SAXSIWAXS is possible with a time resolution of 0.1 seconds and heating/cooling rates up to 120 °C min-1.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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Simultaneous, Time-Resolved, Saxs/Waxs Studies on Block Copoly(Ether-Urethane) Phase Behaviour
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