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Researcher Gisha Elizabeth, Luckachan
Advisor Dr. C K S Pillai
Source CUSAT-Thesis
Content type Text
Educational Degree Doctor of Philosophy (Ph.D.)
File Format PDF
Language English
Subject Domain (in DDC) Technology
Subject Keyword Biodegradable polymers ♦ Synthetic polymers ♦ Monomers ♦ Copolymerization ♦ Polyethylene ♦ Polylactide
Abstract Biodegradable polymers have opened an emerging area of great interestbecause they are the ultimate solution for the disposal problems of syntheticpolymers used for short time applications in the environmental and biomedicalfield. The biodegradable polymers available until recently have a number oflimitations in terms of strength and dimensional stability. Most of them haveprocessing problems and are also very expensive. Recent developments inbiodegradable polymers show that monomers and polymers obtained fromrenewable resources are important owing to their inherent biodegradability,biocompatibility and easy availability. The present study is, therefore, mostlyconcemed with the utilization of renewable resources by effecting chemicalmodification/copolymerization on existing synthetic polymers/natural polymersfor introducing better biodegradability and material properties.The thesis describes multiple approaches in the design of newbiodegradable polymers: (1) Chemical modification of an existing nonbiodegradablepolymer, polyethylene, by anchoring monosaccharides afterfunctionalization to introduce biodegradability. (2) Copolymerization of anexisting biodegradable polymer, polylactide, with suitable monomers and/orpolymers to tailor their properties to suit the emerging requirements such as(2a) graft copolymerization of lactide onto chitosan to get controlled solvationand biodegradability and (2b) copolymerization of polylactide with cycloaliphatic amide segments to improve upon the thermal properties andprocessability.
Education Level UG and PG
Learning Resource Type Thesis
Publisher Institution Regional Research Laboratory (CSIR)