13 Result(s)

Article

Formation and decay of a smectic mesophase during orientation of a PET/PEN copolymer

An analysis has been made of time resolved wide angle X-ray scattering during the deformation of a 50%poly(ethylene terephthalate)/50%poly(ethylene 2,6naphthalate) copolymer at 120°C at a draw rate of the orde...

D. J. Blundell, A. Mahendrasingam, C. Martin, W. Fuller in Journal of Materials Science (2000)

Article

A transient mesophase on drawing polymers based on polyethylene terephthalate (PET) and polyethylene naphthoate (PEN)

This paper is centred around the identification of a transient mesophase during the drawing of PET and PEN and their associated random copolymers. While the observation of the mesophase has previously been ann...

G. E. Welsh, D. J. Blundell, A. H. Windle in Journal of Materials Science (2000)

Article

Orientation and crystallisation mechanisms during fast drawing of poly(ethylene terephthalate)

D. J. Blundell, R. J. Oldman, W. Fuller, A. Mahendrasingam, C. Martin… in Polymer Bulletin (1999)

Chapter

The Lamellar Morphology of Poly-Ether-Ketone (PEK) Copolymers

Two copolymers of PEK have been isothermally crystallised and examined by DSC and X-ray diffraction. One comonomer is normally crystallisable the other non-crystallisable. DSC scans show extra melting prococes...

D. J. Blundell in Crystallization of Polymers (1993)

Chapter

Isothermal Crystallisation of Biaxially Oriented Poly (Ethylene Terephthalate) Film

The samples of interest in this work are films, prepared from Poly(ethylene terephthalate) which, during their preparation have been strained or drawn in the solid state in two mutually perpendicular direction...

D. H. MacKerron, D. J. Blundell, D. R. Turner, R. J. Rule… in Crystallization of Polymers (1993)

Article

Spherulitic morphology of the matrix of thermoplastic PEEK/carbon fibre aromatic polymer composites

PEEK/carbon fibre composites (derived from APC-2) have been examined with a permanganic etching technique in order to reveal the crystalline, spherulitic morphology of the thermoplastic PEEK polymer matrix. Th...

D. J. Blundell, R. A. Crick, B. Fife, J. Peacock, A. Keller… in Journal of Materials Science (1989)

Article

b Axis type orientations in melt drawn fibres of poly(ether-ether-ketone) (PEEK)

Melt drawn fibres of poly(ether-ether-ketone) (PEEK) have been investigated in which various textural effects occur, arising through alignment of self-seeding nuclei, rather than simple orientation on a molecu...

A. J. Waddon, A. Keller, D. J. Blundell in Polymer Bulletin (1988)

Article

On the crystal texture of linear polyaryls (PEEK, PEK and PPS)

Three linear ppolyaryls, polyetheretherketone (PEEK) polyetherketone (PEK) and polyphenylenesulphide (PPS) have been examined regarding crystal morphologies as obtained from solutions and molecular orientation...

A. J. Waddon, M. J. Hill, A. Keller, D. J. Blundell in Journal of Materials Science (1987)

Article

Deep seismic reflection survey across the Variscan Front of southern England

In 1979, the Institute of Geological Sciences commissioned two lines of seismic reflection profile, a technique which has proved successful¹ for studying crystalline basement. The survey was sited to cross the co...

N. Kenolty, R. A. Chadwick, D. J. Blundell, M. Bacon in Nature (1981)

Chapter and Conference Paper

The Gardar Igneous Province: Evidence for Proterozoic Continental Rifting

Three principal episodes (at c. 1300, 1250 and 1170 Ma.) of faulting and associated alkaline magmatism are recognised in the evolution of the Gardar province in south Greenland.

B. G. J. Upton, D. J. Blundell in Petrology and Geochemistry of Continental Rifts (1978)

Article

Sedimentary Basin in the South Irish Sea

RECENT interest in the exploration of the continental shelf around the British Isles prompts us to report briefly on the findings of detailed geophysical surveys across Cardigan Bay and St George's Channel, ma...

D. J. BLUNDELL, F. J. DAVEY, L. J. GRAVES in Nature (1968)