Tailor-made starch-based conjugates containing well-defined poly(vinyl acetate) and its derivative poly(vinyl alcohol)
نویسندگان
چکیده
منابع مشابه
Flow behaviour of polyvinyl alcohol (PVOH) modified blends of polyvinyl acetate (PVAc)/natural rubber (NR) latexes
During compounding processes, polymer latexes are mixed with various colloidal systems (in particular, PVOH) or surface-active agents to modify the flow behaviour in order to suit the manufacturing process. In this study, the flow behaviour of aqueous dispersed PVAc, NR and different mixed dispersions were investigated both in the absence and presence of PVOH as flow modifier, using an Ostwald ...
متن کاملEnhancing Properties of Polyvinyl Alcohol Film using Sorghum Starch Nanocrystals
Polyvinyl alcohol (PVA) nanocomposite films with sorghum starch nanocrystals (SSN) were prepared by incorporating various concentrations of SSN in PVA. SSN was isolated using acid hydrolysis of sorghum starch. The morphological studies of SSN using atomic force microscopy (AFM) revealed that the particle size varied from 65 nm to 68 nm. The mechanical properties of PVA-SSN nanocomposite films i...
متن کاملEvaluation of the Antimicrobial Effect of Chitosan/Polyvinyl Alcohol Electrospun Nanofibers Containing Mafenide Acetate
BACKGROUND Chitosan, an important biodegradable and biocompatible polymer, has demonstrated wound-healing and antimicrobial properties. OBJECTIVES This study aimed to evaluate the antimicrobial properties of mafenide acetate-loaded nanofibrous films, prepared by the electrospinning technique, using chitosan and polyvinyl alcohol (PVA). MATERIALS AND METHODS A 3(2) full factorial design was ...
متن کاملSynthesis of polynucleotide analogs containing a polyvinyl alcohol backbone.
Water soluble homo-base polynucleotide analogues were synthesized in which polyvinyl alcohol and partially phosphonated polyvinyl alcohol constituted the backbones,onto which were grafted uracil or adenine via 1,3-dioxane spacers formed by acetal formation with the 1,3-diol moieties in PVA. The resulting adenine-PVA polynucleotide analogs exhibited hyperchromic effects, which was not the case f...
متن کاملcomparing the microstructure, topography and surface hydrophilicity of starch polyvinyl alcohol based films containing nanoclay and cellulose nanocrystal
the main objectives of this research were the study and comparing the microstructure of pva-stnccand pva-st-mmt by x ray diffraction and atomic force microscopy (afm) and as well as,comparing the effects of two nanoparticle on surface hydrophilicity and moisture absorption. xdiffraction patterns showed that microstructure of the pva-st-mmt films was exfoliated andpva-st-ncc was closer to interc...
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ژورنال
عنوان ژورنال: Express Polymer Letters
سال: 2011
ISSN: 1788-618X
DOI: 10.3144/expresspolymlett.2011.52