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Biodegradation of polyvinyl alcohol

Chen J, Zhang Y et al (2007) Biodegradation of polyvinyl alcohol by a mixed microbial culture. Enzyme Microb Technol 40 1686-1691... [Pg.171]

Huang MH, Shih YP, Liu SM (2002) Biodegradation of polyvinyl alcohol by Phanerochaete chrysosporium after pretreatment with Eenton s reagent. J Environ Sci Health A Tox Hazard Subst Environ Eng 37 29 1... [Pg.171]

E Matsumura S, Kurita H, Shimokobe H (1993) Anaerobic biodegradability of polyvinyl alcohol. Biotechnoi Lett 15 749-754... [Pg.171]

Polyvinyl alcohol is a vinyl polymer with a carbon-carbon backbone similar to other polymers such as polyethylene and polystyrene and is widely used as a water-soluble biodegradable polymer in the manufacture of delivery systems for fertilizers, pesticides and herbicides and is also used to manufacture containers and films. To date, only bacteria have been described as causing biodegradation of polyvinyl alcohols with some causing complete degradation of the polymer (see Shimao, 2001 for review). [Pg.225]

Table 12.1 Consumption of Oxygen and Stoichiometry of Metabolites in the Biodegradation of Polyvinyl Alcohol... Table 12.1 Consumption of Oxygen and Stoichiometry of Metabolites in the Biodegradation of Polyvinyl Alcohol...
Biodegradation of Polyvinyl Alcohol (PVA) under Different Environmental Conditions... [Pg.534]

Haschke H, Tomka I, Keilbach A (1998b), Systematic investigation on the biological degradability of packing material. II. On the biodegradability of polyvinyl alcohol based films , Monatshefte fur Chemie, 129, 365-386. [Pg.397]

Tsuji M (2000), Study of biodegradation of polyvinyl alcohol , Seibunkaisei Kemikarusu to Purasuchikku, ed. Tomita K, 166-173. CMC. [Pg.409]

Chiellini E, Corti A, Politi B, Solaro R (2000) Adsorption/desorption of polyvinyl alcohol on solid substrates and relevant biodegradation. J Polym Environ 8 67-79... [Pg.169]

The proposed biodegradation mechanism is supported by the rapid biodegradation of the polyketone obtained by the chemical oxidation of polyvinyl alcohol [47-49] shown in Scheme 2. [Pg.501]

Other bacterial strains identified as biodegrading polyvinyl alcohol include Flavobacterium [50], Acinetobacter [51], and many others as well as fungi, molds, and yeasts [52], Industrial evaluations at DuPont [53] and Air Products [54] indicate that over 90% of polyvinyl alcohol entering wastewater treatment plants is removed in those locations and hence no environmental pollution is likely. [Pg.501]

The rates and extents of absorption and desorption of polyvinyl alcohol (PVA) samples on different solid substrates comprising montmorillonite, quartz sand, and farm soil, as well as humic acid mixture were studied [125]. Biodegradation experiments carried out in hquid cultures of PVA adsorbed on montmorillonite showed that mineralization of the adsorbed PVA was much lower than that detected for the non-adsorbed PVA. It was suggested that irreversible adsorption of PVA on the clay component occmred in soil, thus substantially inhibiting PVA biodegradatioa... [Pg.153]

Russo M, O Sullivan C et al (2009) The anaerobic degradability of thermoplastic starch Polyvinyl alcohol blends Potential biodegradable food packaging materials. Bioresour Technol 100 1705-1710... [Pg.170]

There is also US research interest in using pectin in polymer applications. Pectin is a complex plant cell wall heteropolysaccharide (based on galactose, rhamnose, arabinose and xylose) that can be blended with synthetic polyvinyl alcohol (PVA) to produce biodegradable polymers with a wider range of properties than those of starch-based polymers alone. The new pectin/PVA biodegradable polymer should be capable of replacing conventional PVA applications in blow-moulded, extruded, film and injection-moulded applications. [Pg.34]

The effect of NaOH on drug release was examined with microspheres prepared with thioridazine and two biodegradable polymers. The wall-forming polymers were poly(DL-lactide) and poly(L-lactide). Sodium oleate was used as the emulsifier, with the exception of one set of experiments where the emulsions were stabilized with polyvinyl alcohol. [Pg.217]

SULFANOLE 334 surfactant is a nonionic biodegradable penetrant and detergent which does not rewet after drying. It may be used in acid or alkaline mediums with minimal effect on its wetting or detergent properties. It is very effective in the removal and suspension of waxes and polyvinyl alcohols during preparation. [Pg.545]

Several other biodegradable, biocompatible, injectable polymers are being investigated for drug delivery systems. They include polyvinyl alcohol, block copolymer of PLA-PEG, polycyanoacrylate, polyanhydrides, cellulose, alginate, collagen, gelatin, albumin, starches, dextrans, hyaluronic acid and its derivatives, and hydroxyapatite. ... [Pg.1644]

See other pages where Biodegradation of polyvinyl alcohol is mentioned: [Pg.262]    [Pg.309]    [Pg.9]    [Pg.535]    [Pg.262]    [Pg.309]    [Pg.9]    [Pg.535]    [Pg.479]    [Pg.311]    [Pg.89]    [Pg.57]    [Pg.17]    [Pg.1080]    [Pg.56]    [Pg.10]    [Pg.130]    [Pg.119]    [Pg.16]    [Pg.69]    [Pg.170]    [Pg.9]    [Pg.60]    [Pg.165]    [Pg.262]    [Pg.561]    [Pg.503]    [Pg.33]    [Pg.316]    [Pg.232]   
See also in sourсe #XX -- [ Pg.534 , Pg.535 ]



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