Results 281 to 290 of about 1,163,904 (348)
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Polyvinyl alcohol and modified polyvinyl alcohol reverse osmosis membranes
Desalination, 1993Abstract A study was conducted on the insolubilization of polyvinyl alcohol. Polyvinyl alcohol was regarded as a stable material for the formation of gel layer base membranes, which could then be further modified to produce RO membranes with good salt retention.
Sanderson R.D. +4 more
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Journal of Cellular Plastics, 2016
Foams for biomedical applications were made from polyvinyl alcohol, polyvinyl alcohol / polyvinyl pyrrolidone blend and their nanocomposites with nanoclay by clean processes. Air was entrapped into the aqueous polymer solutions during vigorous mixing and then the solutions were freeze-dried. The foams structure was stabilized by crosslinking via gamma
Parinaz Sabourian +2 more
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Foams for biomedical applications were made from polyvinyl alcohol, polyvinyl alcohol / polyvinyl pyrrolidone blend and their nanocomposites with nanoclay by clean processes. Air was entrapped into the aqueous polymer solutions during vigorous mixing and then the solutions were freeze-dried. The foams structure was stabilized by crosslinking via gamma
Parinaz Sabourian +2 more
openaire +1 more source
Carbohydrate Polymers, 2020
In this work, a colorimetric film was designed for shrimp freshness monitoring by incorporating rose anthocyanins (RAs) in polyvinyl alcohol/okra mucilage polysaccharide (PVA/OMP) composite film. The presence of OMP changed the film-forming solution from
Shaolei Kang +7 more
semanticscholar +1 more source
In this work, a colorimetric film was designed for shrimp freshness monitoring by incorporating rose anthocyanins (RAs) in polyvinyl alcohol/okra mucilage polysaccharide (PVA/OMP) composite film. The presence of OMP changed the film-forming solution from
Shaolei Kang +7 more
semanticscholar +1 more source
, 2020
This study aims to develop active and intelligent packaging films based on starch/polyvinyl alcohol incorporated with betalains-rich red pitaya (Hylocereus polyrhizus) peel extract. The microstructure, physical and functional properties of the films with
Yan Qin, Yunpeng Liu, Xin Zhang, Jun Liu
semanticscholar +1 more source
This study aims to develop active and intelligent packaging films based on starch/polyvinyl alcohol incorporated with betalains-rich red pitaya (Hylocereus polyrhizus) peel extract. The microstructure, physical and functional properties of the films with
Yan Qin, Yunpeng Liu, Xin Zhang, Jun Liu
semanticscholar +1 more source
Environmental Science and Technology, 2020
Traditional polyamide-based interfacial polymerized nanofiltration (NF) membranes exhibit upper bound features between water permeance and salt selectivity. Breaking the limits of the permeability and rejections of these composite NF membranes are highly
Xuewu Zhu +9 more
semanticscholar +1 more source
Traditional polyamide-based interfacial polymerized nanofiltration (NF) membranes exhibit upper bound features between water permeance and salt selectivity. Breaking the limits of the permeability and rejections of these composite NF membranes are highly
Xuewu Zhu +9 more
semanticscholar +1 more source
Polyvinyl Alcohol and Polyvinyl Acetate
2020Basically only ethylene and air are needed for the production of polyvinyl acetate (PVAc) and its polymer analogous products, such as polyvinyl alcohol and polyvinyl butyrate. Polyvinyl acetate serves as the precursor for polyvinyl alcohol and, directly or indirectly, the polyvinyl acetals.
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International Journal of Biological Macromolecules, 2022
Wenkai Hu +5 more
semanticscholar +1 more source
Wenkai Hu +5 more
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Syndiotactic polyvinyl formate and derived polyvinyl alcohol
Journal of Polymer Science Part A: General Papers, 1963AbstractA study was made of the effect of polymerization temperature on the syndiotacticity of polyvinyl formate. Vinyl formate was polymerized with ultraviolet light initiation in the temperature range from −20 to +30°C. The value of (Ep — Et)/2 obtained, 4.5 kcal./mole, is characteristic of those values obtained by other workers for the free radical ...
Irving Rosen +3 more
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