Synthetic and structural studies of high performance polymers: Crystal structures of high performance aromatic polymers using molecular mechanic modelling and Rietveld analysis - Couverture souple

Ahmad, Zulkifli

 
9783844323856: Synthetic and structural studies of high performance polymers: Crystal structures of high performance aromatic polymers using molecular mechanic modelling and Rietveld analysis
Couverture souple
ISBN 10 : 3844323856 ISBN 13 : 9783844323856
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

Crystal structure plays an important role in determining chemical and mechanical properties of polymers.Elucidating the crystal structure of polymers is extremely difficult particularly in obtaining a sizeable crystal for XRD analysis.This work prove the viability of computer modelling approach interfaced with simulated XRD diffraction. High-performance aromatic polymers based on the 4,4'-biphenylene, 1,3-phenylene,isophthaloyl bis(4,4'-biphenylene) and p-terphenyl units were synthesized and their crystal structures investigated. The polymers show extreme thermal stability and are insoluble in almost all organic solvents.Oligomer and polymer crystal structures were constructed using computational modelling and quantitatively compared with simulated diffraction via Rietveld Analysis. Molecular mechanics force-fields were optimised from conformational and crystal packing data determined from oligomeric analogues by X-ray single-crystal and powder diffraction methods.

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Présentation de l'éditeur

Crystal structure plays an important role in determining chemical and mechanical properties of polymers.Elucidating the crystal structure of polymers is extremely difficult particularly in obtaining a sizeable crystal for XRD analysis.This work prove the viability of computer modelling approach interfaced with simulated XRD diffraction. High-performance aromatic polymers based on the 4,4'-biphenylene, 1,3-phenylene,isophthaloyl bis(4,4'-biphenylene) and p-terphenyl units were synthesized and their crystal structures investigated. The polymers show extreme thermal stability and are insoluble in almost all organic solvents.Oligomer and polymer crystal structures were constructed using computational modelling and quantitatively compared with simulated diffraction via Rietveld Analysis. Molecular mechanics force-fields were optimised from conformational and crystal packing data determined from oligomeric analogues by X-ray single-crystal and powder diffraction methods.

Biographie de l'auteur

The author was graduated with doctoral degree from The University of Reading,UK in November 2005 .His main research interest is in polymer synthesis of high performance polymer. At present he is attached at Universiti Sains Malaysia as an Associate Professor.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3844323856
ISBN 13 
9783844323856
Reliure
Broché
Nombre de pages
220
Coordonnées du fabricant
non disponible
Personne responsable
non disponible