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首页> 外文期刊>Journal of Applied Polymer Science >Allylamine plasma-polymerization on PLLA surface evaluation of the biodegradation
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Allylamine plasma-polymerization on PLLA surface evaluation of the biodegradation

机译：烯丙胺等离子体聚合对PLLA表面生物降解的评价

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Biodegradation of poy(L-lactide) (PLLA) films and filaments recovered with hydrophilic layer (contact angle theta H2O = 14 degrees, surface energy gamma(s) = 70.9 mJ m(-2)) from allylarnme plasma polymerization was investigated under aerobic conditions in sludge. XPS and FTIR-ATR analysis of the plasma layer showed 14.4% N and 16.6% O mainly as amide group. Optical microscopy showed much bacteria colonies on treated PLLA surface than on untreated one. Weight loss and oxygen consumption after 65 days were 4-5% and 4 mg h-1 per gram polymer respectively. The fact that biodegradation lag-phase for treated PLLA was released quicker (7 days) than untreated one (14 days), could be related to the presence of hydrophilic plasma layer that improved swelling-dissolution of hydrolyzed molecular fragments. (c) 2007 Wiley Periodicals, Inc.
机译：在好氧条件下研究了烯丙酰胺等离子聚合对亲水层（接触角θH2O = 14度，表面能γ= 70.9 mJ m（-2））回收的聚（L-丙交酯）（PLLA）薄膜和细丝的生物降解作用。污泥中的条件。等离子体层的XPS和FTIR-ATR分析表明，主要是酰胺基，N为14.4％，O为16.6％。光学显微镜显示在处理过的PLLA表面上的细菌菌落比未处理过的细菌菌落多。 65天后的重量损失和氧气消耗分别为每克聚合物4-5％和4mg h-1。处理过的PLLA的生物降解滞后阶段比未处理过的（14天）释放更快（7天），这一事实可能与亲水性血浆层的存在有关，亲水性血浆层改善了水解分子片段的溶胀度。 （c）2007年Wiley Periodicals，Inc.

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