Biodegradability of Poly(vinyl acetate) and Related Polymers

Amann, Manfred; Minge, Oliver

doi:10.1007/12_2011_153

Cited by 52 publications

(49 citation statements)

References 79 publications

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“…The cellulose/PLLA blends and cellulose‐ g ‐PLLA polymers degradated via hydrolytic processes of the ester chains of PLLA. Water accessibility to these bonds would determine the rate of degradation . Accordingly, the rates for the degradation may depend on the hydrophilicity and crystallinity of the blend and graft polymer.…”

Section: Resultsmentioning

confidence: 99%

Degradation of graft polymer and blend based on cellulose and poly(L‐lactide)

Dai

2013

J of Applied Polymer Sci

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Degradable polymers were prepared by blending and graft polymerization of cellulose and poly(L-lactide) (PLLA). The cellulose/poly(L-lactide) blends and cellulose-graft-poly(L-lactide) polymers were characterized by FTIR, NMR, DSC, and TGA. Wideangle X-ray powder diffraction (WAXD) and degradation tests [by alkaline, phosphate-buffered saline solution (PBS), and enzyme solution] showed changes in the crystalline structure as a result of degradation. The results indicated that blending and graft polymerization could affect crystallization of the polymers and promote the degradability. The polymers with low degree of crystallinity showed higher degradability. In contrast, enzyme, alkaline, and PBS degradated material decreased rate of polymers degradation. In addition, high levels of PLLA resulted in a decrease in degradation.

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Section: Resultsmentioning

confidence: 99%

Degradation of graft polymer and blend based on cellulose and poly(L‐lactide)

Dai

2013

J of Applied Polymer Sci

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“…To date the biodegradability of polymer materials containing N-vinylpyrrolidone, vinyl acetate, vinyl alcohol in the structure has been sufficiently investigated [15][16][17]. However, studies of biodegradation of polymer materials containing of the ternary copolymer of N-vinylpyrrolidone with vinyl acetate and vinyl alcohol in the structure are scarce.…”

Section: Ir-spectra Of Film Materials With D-cycloserine Obtained Basmentioning

confidence: 99%

Study of Biodegradation of Film Materials with D-Cycloserine Based on Polyurethaneurea and the Dynamics of Drug Release

Rudenchyk¹,

Rozhnova²,

Galatenko³

et al. 2019

AJPST

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The study of the ability to biodegradation of film materials with D-cycloserine obtained on the basis of polyurethaneurea with fragments of the copolymer of N-vinylpyrrolidone with vinyl acetate and vinyl alcohol, and 1.6hexamethylenediamine in the structure under the influence of biological medium 199 for 1, 3 and 6 months were conducted. IR spectroscopy and physical-mechanical tests of these film materials before and after incubation in biological medium 199 were investigated. According to research results, there are decrease of the tensile strength (in 1.29-2.50 times) and a relative elongation at break (in 1.15-1.91 times) after incubation in biological medium 199. It is established that under the influence of biological medium 199 there are processes of biodegradation of film materials. The introduction of D-cycloserine into the composition of polyurethaneurea contributes to their biodegradation. It allows us to conclude that biodegradation is due to release of D-cycloserine. The study of the dynamics of D-cycloserine release from the polymer matrix was conducted by spectrophotometric method. The amount of drug varies depending on the copolymer content in structure of film materials (75.00-96.71% of the total amount of the introduced drug). It has been established that the studied film materials are capable to the prolonged release of D-cycloserine. It allows using them as film coatings for medicine with different ability to release of drug depending on requirements.

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“…These raw materials can be completely replaced by feedstock and switched to ethanol, which can be produced from renewable sources such as sugar cane, corn or preferably straw and other non-food parts of plants. (Amann and Minge, 2011). PVAc is a rather polar, hygroscopically restrained polymer.…”

Section: Introductionmentioning

confidence: 99%

Manufacture of wood fiber reinforced polyvinyl acetate rigid foams

Ergün¹,

Özen

Yıldırım

et al. 2020

Ormancılık Araştırma Dergisi

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In this work, rigid foams designed and manufactured using the freeze drying technique were made from polyvinyl acetate (PVAc), bleached kraft pulp and unbleached kraft pulp. The rigid foams designed as an environmentally-friendly product with no pentane or hydrochlorofluorocarbon included in the manufacturing process. The PVAc based foams were reinforced with different kraft pulp contents. Their performance properties such as compressive and flexural strength, physical and morphological properties were investigated according to relevant standards. The foam densities ranged from 0,017 g/cm 3 with %17,65 coefficient of variation (CV) to 0,137 g/cm 3 with %2,33 CV. The compression resistance was found between 0,001 N/mm 2 with %50,00 CV and 0,03 N/mm 2 with %5,98 CV. The flexural resistance was found between 0,005 N/mm 2 with %20,00 CV and 0,11 N/mm 2 with %6,06 CV. Optimum properties were observed at B-4 (PVAc/ Bleached Kraft pulp 1/0.8). Bleached kraft pulp reinforcement gave better results on performance characteristics of foam materials compared to unbleached kraft pulp reinforcement. Overall test results showed that the PVAc based rigid foams have promising results.

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Biodegradability of Poly(vinyl acetate) and Related Polymers

Cited by 52 publications

References 79 publications

Degradation of graft polymer and blend based on cellulose and poly(L‐lactide)

Degradation of graft polymer and blend based on cellulose and poly(L‐lactide)

Study of Biodegradation of Film Materials with D-Cycloserine Based on Polyurethaneurea and the Dynamics of Drug Release

Manufacture of wood fiber reinforced polyvinyl acetate rigid foams

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