Biodegradation of Polyurethane Derived from Castor Oil

被引:40
作者
Cangemi, Jose M. [1 ]
dos Santos, Antonia M. [2 ]
Neto, Salvador C. [3 ]
Chierice, Gilberto O. [3 ]
机构
[1] Ctr Formacao Profiss, Inst Ensino Super, Fac COC, BR-14010090 Ribeirao Preto, SP, Brazil
[2] UNESP, Dept Bioquim & Microbiol, Rio Claro, SP, Brazil
[3] USP, Inst Quim Sao Carlos, Sao Carlos, SP, Brazil
来源
POLIMEROS-CIENCIA E TECNOLOGIA | 2008年 / 18卷 / 03期
关键词
Biodegradation; polyurethane; castor oil; polyester; microorganisms;
D O I
10.1590/S0104-14282008000300004
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The aim of this research was to stud the biodeoradation of a polymer derived from castor oil. which is a renewable. natural material that is a practical alternative for the replacement of traditional polyurethane foams. Due to Its molecular structure. which contains polyester segments derived from vegetable oil, the polymeric surface is susceptible to microorganism attack. attack. This study tested the biological degrading agent that was in contact with the microorgnisms resulting from microbioloaical grease degrading agents, when foam was inoculated. Solid-media agar-plate tests were conducted for their potential to evalute the biodegradation of polymeric particlw by specific strains of microorganisms during 216 hours. The growth rate was defined. This technique provides a way of distinguishing the degradation abilities abilities of microorganisms from the degradability of materials.
引用
收藏
页码:201 / 206
页数:6
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