Evaluation of the Effect of Chemical or Enzymatic Synthesis Methods on Biodegradability of Polyesters

被引:6
作者
Goujard, Laurent [1 ]
Roumanet, Pierre-Jean [2 ]
Barea, Bruno [3 ]
Raoul, Yann [4 ]
Ziarelli, Fabio [5 ]
Le Petit, Jean [1 ]
Jarroux, Nathalie [2 ]
Ferre, Elisee [1 ]
Guegan, Philippe [6 ,7 ]
机构
[1] Aix Marseille Univ, UMR CNRS IRD 7263, IMBE, Fac St Jerome, Case 452, F-13397 Marseille 20, France
[2] Univ Evry Val dEssone, Team Mat Polymers Interfaces, LAMB, CNRS UMR 8587, Blvd F Mitterand, F-91025 Evry, France
[3] CIRAD Lipotech, SUPAGRO, INRA, UMRIATE 1208, Bat 33,2 Pl Viala, F-34060 Montpellier 1, France
[4] ONIDOL, 11 Rue Marceau CS 60003, F-75378 Paris 08, France
[5] Univ Aix Marseille, Fac St Jerome, CNRS FR1739, Case 512, F-13397 Marseille 20, France
[6] Univ Paris 06, Sorbonne Univ, IPCM, Chim Polymeres, Paris, France
[7] CNRS, IPCM, Chim Polymeres, Paris, France
关键词
Chemical polyesters; Enzymatic polyesters; Biodegradability; POLY-L-LACTIDE; NMR-SPECTROSCOPY; DEGRADATION; GLYCEROL; ESTERIFICATION; MECHANISMS; KINETICS; PLASTICS;
D O I
10.1007/s10924-015-0742-7
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This work compares the biodegradability of polyesters produced by an esterification reaction between glycerol and oleic di-acid (D 18:1) issued from green chemical pathways, via either classical thermo-chemical methods, or an enzymatic method using the immobilized lipase of Candida antartica B (Novozym 435). An elastomeric polymer synthesized by enzymatic catalysis is more biodegradable than an elastomeric thermo-chemical polyester synthesized by a standard chemical procedure. This difference lies in percentage of the dendritic motifs, in values of the degree of substitution, and certainly in cross-links inducing an hyper-branched structure less accessible to the lipolytic enzymes in a waste treatment plant. However, when the elastomeric polymer synthesized by enzymatic catalysis is processed at high temperature as required for certain industrial applications, it presents an identical rate of biodegradation than the chemical polyester. The advantages of the thermo-chemical methods are greater speed and lower cost. Enzymatic synthesis appears be suited to producing polyesters, devoid of metallic catalysts, which must be used without processing at high temperature to keep a high biodegradability.
引用
收藏
页码:64 / 71
页数:8
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