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Modification of carboxymethyl chitosan film by blending with poly(γ-benzyl L-glutamate)-block-poly(ethylene glycol) copolymer
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نویسنده
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zhu g.-q. ,wang f.-g. ,gao q.-c. ,liu y.-y.
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منبع
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journal of the chemical society of pakistan - 2013 - دوره : 35 - شماره : 2 - صفحه:347 -352
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چکیده
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A series of water-soluble carboxymethyl chitosan (cmcs)/poly(γ-benzyl l-glutamate)- block-poly(ethylene glycol) (pblg-b-peg) blend films with various cmcs/pblg-b-peg mol ratios were prepared by pervaporation method. morphologies of cmcs/pblg-b-peg blend films were researched by scanning electron microscopy (sem). thermal,mechanical,and chemical properties of cmcs/pblg-b-peg blend films were investigated by differential scanning calorimetry (dsc),thermogravimetric analysis (tga),tensile tests,and contact angle tests. it was revealed that the introduction of pblg-b-peg segments could greatly affect the morphology and the properties of cmcs films.
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کلیدواژه
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Blend film; Carboxymethyl chitosan; Modification; PBLG-b-PEG; Properties
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آدرس
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school of materials science and engineering,shandong university of technology, China, school of materials science and engineering,shandong university of technology, China, school of materials science and engineering,shandong university of technology, China, school of materials science and engineering,shandong university of technology, China
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Authors
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