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Title: |
Relaxation Phenomena in Chitosan Films |
Search Result:
| By (author): |
Evgeny Prokhorov, J Betzabe González-Campos, G Luna-Bárcenas, Rosa E N del RĂo-Torres, L Chacon-Garcia |
| ISBN10-13: |
1617613150 : 9781617613159 |
| Illustrations: |
graphs |
| Format: |
Paperback |
| Size: |
140x215mm |
| Pages: |
48 |
| Weight: |
.096 Kg. |
| Published: |
Nova Science Publishers, Inc (US) - February 2011 |
| List Price: |
52.99 Pounds Sterling |
| Availability: |
Temporarily Out of Stock, more expected soon
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| Subjects: |
Biochemistry |
| This book presents data on thermal relaxation properties of chitosan neutralised and non-neutralised films as a function of water content using dynamical mechanical analysis and dielectric spectroscopy in the temperature range from 20 to 250°C. Three relaxation processes have been observed in different temperature and frequency ranges. For the first time, the low frequency á-relaxation associated with the glass-rubber transition, which relates to a plasticising effect of water, has been detected by this technique in both chitosan forms in the temperature range 20-70°C and for moisture contents between 0.5 to 10 wt %. This book discusses various relaxation processes in chitosan films. |
| Table of Contents: |
| Introduction; Chitosan Glass Transition Temperature Controversy; The Glass Transition & the Á-Relaxation Process; Dielectric Relaxation Processess in Polysaccharides; Dynamic Mechanical Analysis (DMA) in Chitosan; Materials & Experimental Methods; Results & Discussion; Index. |
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