Degradation of polyethylene and Nylon-66 by the laccase-mediator system
Degradation of polyethylene and Nylon-66 by the laccase-mediator system
复制标题
DOI：
10.1023/a:1020472426516
复制
发表时间：
2001-07-01
影响因子：
5.3
通讯作者：
Nishida, T
中科院分区：
文献类型：
--
作者：
Fujisawa, M;Hirai, H;Nishida, T
研究了以1-羟基苯并三唑（HBT）为介质的漆酶-介质体系（LMS）是否能降解高分子量聚乙烯和尼龙-66膜。LMS显著降低了这些膜的伸长率和抗拉强度。LMS处理3 d后，聚乙烯的M-w从242,000下降到28,300，尼龙-66的M-w从79,300下降到14,700。LMS还降低了聚乙烯和尼龙-66的多分散性（M-w/M-n）。此外，这些伸长率、抗拉强度和分子量的降低伴随着聚乙烯和尼龙-66膜的形态解体。结果表明，含HBT的LMS能有效降解聚乙烯和尼龙66。
We investigated whether the laccase-mediator system (LMS) with 1-hydroxybenzotriazole (HBT) as a mediator could degrade high-molecular-weight polyethylene and nylon-66 membranes. The LMS markedly reduced the elongation and tensile strength of these membranes. After 3 days of treatment with the LMS, the M-w of polyethylene decreased from 242,000 to 28,300, and that of nylon-66 from 79,300 to 14,700. The LMS also decreased the polydispersity (M-w/M-n) of polyethylene and nylon-66. Furthermore, these reductions in elongation, tensile strength, and molecular weight were accompanied by morphological disintegration of the polyethylene and nylon-66 membranes. These results strongly suggest that the LMS with HBT can effectively degrade polyethylene and nylon-66.