Please use this identifier to cite or link to this item:
Title: Phase behaviour and modeling of low and high-solid biopolymer mixtures: A treatise
Keywords: biopolymer mixtures, phase separation, glass transition
Issue Date: 22-Jun-2009
Citation: PREETI SHRINIVAS (2009-06-22). Phase behaviour and modeling of low and high-solid biopolymer mixtures: A treatise. ScholarBank@NUS Repository.
Abstract: <br> Part I of this thesis examines structural properties of mixtures of agarose, gelatin, and a lipid. Rationalization using a bicontinuous blending-law suggests presence of two continuous phases with gelatin exhibiting favourable relative affinity for solvent at increasing concentrations in the system, contradicting the central finding of a single value of the b p-factorb reported for de-swelled binary gels. Incorporation of a liquid/solid-like lipid phase weakened/reinforced the composite which was modeled using analytical expressions of isotropically dispersed soft/ rigid filler particles in a polymeric matrix.<br><br>Part II studies the structural behavior of amylose in the presence of glucose syrup. In contrast to industrial polysaccharides, amylose holds its structural characteristics unaltered at low-intermediate levels of co-solute. Thereafter, an early phase inversion to a co-solute dominated system occurs. Using the combined framework of the free volume / reaction rate theories two distinct glass transition temperatures are argued for proposing that the system is micro phase-separated, without reaching a state of molecular mixing.<br>
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
ShrinivasP.pdf7.76 MBAdobe PDF



Page view(s)

checked on Nov 4, 2018


checked on Nov 4, 2018

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.