Le comportement mécanique des polymères

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Table of contents

Chapitre 1
1 Introduction
2 Results and discussion
2.1 Isolation, fractionation and composition of HemiCelluloses (HC) and ArabinoXylanes (AX)
2.2 Analysis of the substitution patterns of AX
2.2.1 Hydrolysis of AX with an endo--1,4-xylanase
2.2.2 Hydrolysis of AX by -L-arabinofuranosidases
2.3 HPSEC analysis of AX
2.3.1 HPSEC analysis in DMSO solution
2.3.2 HPSEC analysis in aqueous solution
2.4 Film properties of HC and AX
2.4.1 X-ray analysis
2.4.2 Film density measurement in dry environment
2.4.3 Water sorption properties
2.4.4 Viscoelastic properties
2.4.5 Oxygen permeability coefficient
2.4.6 Oxygen diffusion coefficient
2.4.7 Oxygen solubility in dry environment
3 Conclusion
Chapitre 2
1 Introduction
2 Results and discussion
2.1 Chemical composition of polymer matrices
2.2 Nanocomposite films
2.3 X-ray analysis
2.4 Film density in dry environment
2.5 Water sorption properties
2.6 Viscoelastic properties
2.6.1 Beta transition
2.6.2 Alpha transition
2.6.3 Apparent activation energy of alpha and beta relaxation
2.6.4 Oxygen permeability and solubility
3 Conclusion
Chapitre 3
1 Introduction
2 Results and discussion
2.1 Chemical composition of water insoluble fractions
2.2 Analysis of the substitution patterns
2.3 Analysis of hydrolytic efficiency of Shearzyme
2.4 HPSEC analysis
2.5 X-ray analysis
2.6 Water sorption properties
2.7 Viscoelastic properties
3 Conclusion