Polymers and Environment I. Synthesis of Copolyamide-esters and Their Enzymatic Hydrolysis.

Komatsu, Shinji; Tokiwa, Yutaka

doi:10.1295/koron.50.785

Cited by 5 publications

(1 citation statement)

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“…Most CPAEs were degraded by the lipase. The biodegradability decreased with an increase in Tm of CPAEs as a result of an increase in the amide bond contents [ 93 ].…”

Section: Polyamide (Nylon)mentioning

confidence: 99%

Biodegradability of Plastics

Tokiwa¹,

Calabia

Ugwu³

et al. 2009

IJMS

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1,370

758

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Plastic is a broad name given to different polymers with high molecular weight, which can be degraded by various processes. However, considering their abundance in the environment and their specificity in attacking plastics, biodegradation of plastics by microorganisms and enzymes seems to be the most effective process. When plastics are used as substrates for microorganisms, evaluation of their biodegradability should not only be based on their chemical structure, but also on their physical properties (melting point, glass transition temperature, crystallinity, storage modulus etc.). In this review, microbial and enzymatic biodegradation of plastics and some factors that affect their biodegradability are discussed.

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“…Most CPAEs were degraded by the lipase. The biodegradability decreased with an increase in Tm of CPAEs as a result of an increase in the amide bond contents [ 93 ].…”

Section: Polyamide (Nylon)mentioning

confidence: 99%

Biodegradability of Plastics

Tokiwa¹,

Calabia

Ugwu³

et al. 2009

IJMS

Self Cite

1,370

758

View full text Add to dashboard Cite

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Enzymatic degradation of aliphatic polyesters copolymerized with various diamines

Nagata

1996

Macromol. Rapid Commun.

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Poly(hexamethy1ene adipate) copolymers with 1040 mol-% (in feed) of aliphatic diamines of various methylene chain lengths were prepared by melt polycondensation. hi vitro degradation was performed in buffer solution at 37 'C with a lipase and was evaluated by weight loss of the films. The weight loss increased greatly by the copolynieriration and showed a maximum at 10 mol-'% of comonomer content. Degradation also increased in a zigzag fashion with decreasing number of methylene chains in the diamine comonomers. Both effects on the enzymatic degradation are discussed.

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