Chemoenzymatic Synthesis of Water-Soluble Sugar-Branched Poly (Vinyl Alcohol)

1998 ◽  
pp. 477-491
Author(s):  
Yutaka Tokiwa ◽  
Masaru Kitagawa
Keyword(s):  
Vinyl Alcohol ◽  
Soluble Sugar ◽  
Water Soluble ◽  
Chemoenzymatic Synthesis ◽  
Poly Vinyl Alcohol

scholarly journals Self-Healing Polymer-Clay Hybrids by Facile Complexation of a Waterborne Polymer with a Clay

2021 ◽  
Author(s):  
Aranee Pleng Teepakakorn ◽  
Makoto Ogawa
Keyword(s):  
Vinyl Alcohol ◽  
Aqueous Media ◽  
Water Soluble ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
Soluble Polymer ◽  
Water Soluble Polymer ◽  
Smectite Clay

Water-induced self-healing materials were prepared by the hybridization of a water-soluble polymer, poly(vinyl alcohol), with a smectite clay by mixing in an aqueous media and subsequent casting. Without using chemical...

Effect of Cobalt Stearate and Vegetable Oil on Uv and Biodegradation of Linear Low-Density Poly(Ethylene)-Poly(Vinyl Alcohol) Blends

2011 ◽  
Vol 2 (4) ◽  
pp. 131-148 ◽  
Author(s):  
Francis Vidya ◽  
Subin S. Raghul ◽  
Sarita G Bhat ◽  
Eby Thomas Thachil
Keyword(s):  
Vegetable Oil ◽  
Vinyl Alcohol ◽  
Water Soluble ◽  
Poly Vinyl Alcohol ◽  
Low Density ◽  
Compression Moulding ◽  
Melt Mixing ◽  
Degradation Behaviour ◽  
Moulding Process ◽  
Poly Ethylene

The main objective of this study was to enhance the rate of UV and biodegradation of polyethylene by incorporating biodegradable materials and prooxidants. Prooxidants such as transition metal complexes are capable of initiating photooxidation and polymer chain cleavage, rendering the product more susceptible to biodegradation. In this work, the effect of (1) a metallic photoinitiator, cobalt stearate, and (2) different combinations of cobalt stearate and vegetable oil on the photooxidative degradation of linear low-density poly(ethylene)-poly(vinyl alcohol) (LLDPE/PVA) blend films has been investigated. For this, film-grade LLDPE was blended with different proportions of PVA. PVA is widely used in the industrial field, and recently it has attracted increasing attention as a water-soluble biodegradable polymer. Cobalt stearate and vegetable oil were added to the blends as prooxidants. The blends were prepared by melt mixing in a Thermo HAAKE Polylab system. Thin films containing these additives were prepared by a subsequent compression moulding process. The effect of UV exposure on LLDPE/PVA films in the presence as well as absence of these additives was investigated. Tensile properties, FTIR spectra, and scanning electron microscopy (SEM) were employed to investigate the degradation behaviour. It was found

scholarly journals Complexation properties of water-soluble poly(vinyl alcohol) (PVA)-based acidic chelating polymers

2021 ◽  
Vol 255 ◽  
pp. 117747
Author(s):  
Julien Muller ◽  
Xianyu Ding ◽  
Amine Geneste ◽  
Jerzy Zajac ◽  
Benedicte Prelot ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Water Soluble ◽  
Poly Vinyl Alcohol ◽  
Soluble Poly ◽  
Chelating Polymers

Synthesis and Characterization of Photopolymerized Multifunctional Hydrogels:  Water-Soluble Poly(Vinyl Alcohol) and Chondroitin Sulfate Macromers for Chondrocyte Encapsulation

2004 ◽  
Vol 37 (18) ◽  
pp. 6726-6733 ◽  
Author(s):  
Stephanie J. Bryant ◽  
Kelly A. Davis-Arehart ◽  
Ning Luo ◽  
Richard K. Shoemaker ◽  
Jeffrey A. Arthur ◽  
...  
Keyword(s):  
Chondroitin Sulfate ◽  
Vinyl Alcohol ◽  
Water Soluble ◽  
Synthesis And Characterization ◽  
Poly Vinyl Alcohol ◽  
Soluble Poly
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