搜索:  
Grafting of telechelic poly(lactic-co-glycolic acid) onto O2 Plasma Treated Polypropylene Flakes  
Grafting of telechelic poly(lactic-co-glycolic acid) onto O2 Plasma Treated Polypropylene Flakes
资料类型: PDF文件
关键词: polypropylene  telechelic  poly(lactic-coglycolic  acid)  oxygen  plasma  grafting  
资料大小: 616k
所属学科: 功能高分子
来源: 来源网络
简介:
In this work, we described a facileapproach to preparing polypropylene (PP) surface functionalizedwith telechelic poly(lactic-co-glycolic acid) (HOPLGA-COOH). The PP flakes were first treated with oxygenplasma and then grafted with different molecular weight PLGA (Mw ? 50, 100, and 300 K) in dry dichloromethanesolution with the addition of phosphorus pentachloride(PCl5). The attenuated total reflectance-Fourier transform infrared (ATR–FTIR) spectroscopy measurementswere used to characterize the composition of the PPsurface. The appearance of 1756 cm1 for carbonyl (C?O) stretching and 1090 cm1 for CAOAC and the morphologiesobservations by atomic force microscopy show thatPLGA graft covered the surface of PP flake. The IR intensityat 1756 cm-1 increases with the decreasing Mw ofPLGA, and the molecular weight of PLGA also influencethe grafting of PLGA on PP. The contact angle was usedto monitor the changes in hydrophilicity of PP flake surfacealong the treatment procedure. PLGA-grafted PP (PPg-PLGA) was eventually obtained.
上传人: zhangtianzhu
上传时间: 2015-11-03 18:56:34
下载次数: 0
消耗积分: 0  
立即下载:
1人
1人
1人
友情提示:下载后对该资源进行评论,即可奖励2分。
报告错误:  1.下载无效  2. 资料明显无价值  3. 资料重复存在

相关评论 共有0人发表评论 更多评论
你还没有登录,无法发表评论,请首先 登录 注册
免责声明:本站部分资源由网友推荐,来自互联网,版权属于原版权人,如果不慎侵犯到您的权利,敬请告知,我们会在第一时间撤除。本站中各网友的评论只代表其个人观点,不代表本站同意其观点。