Nanocomposites of Electrospun Poly[(D,L-lactic)-co-(glycolic acid)] and Plasma-Functionalized Single-Walled Carbon Nanotubes for Biomedical Applications
Nanocomposites of Electrospun Poly[(D,L-lactic)-co-(glycolic acid)] and Plasma-Functionalized Single-Walled Carbon Nanotubes for Biomedical Applications
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DOI：
10.1002/ppap.200800081
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发表时间：
2009-02-09
影响因子：
3.5
通讯作者：
Lee, Nae-Eung
中科院分区：
文献类型：
--
作者：
Yoon, Ok J.;Kim, Hyun W.;Lee, Nae-Eung
通过电感耦合N-2/H-2等离子体处理市售羧基官能化的SWCNT（c-SWCNT）获得的胺官能化的SWCNT（a-SWCNT）的电导与c-SWCNT的电导相比降低。其结果是，直径和表面能的静电纺PLGA/a-SWCNT纳米复合材料的减少和增加，分别相比，那些静电纺PLGA/c-SWCNT纳米复合材料。结果还表明，a-SWCNT很好地分散在纳米复合材料中，改善了SWCNT与周围聚合物基质的粘附性，从而使电纺PLGA/c-SWCNT和PLGA/a-SWCNT纳米复合材料的拉伸模量分别比电纺PLGA膜提高了127%和226%。
The conductance of amine-functionalized SWCNTs (a-SWCNTs), obtained by inductively coupled N-2/H-2 plasma treatment of commercially available carboxyl-functionalized SWCNTs (c-SWCNTs), was decreased compared to that of the c-SWCNTs. As a result, the diameter and surface energy of electrospun PLGA/a-SWCNT nanocomposites decreased and increased, respectively, compared to those of electrospun PLGA/c-SWCNT nanocomposites. The results also showed that the a-SWCNTs were well dispersed in the nanocomposites, improved adhesion of SWCNTs to the surrounding polymer matrix and thereby enhanced the tensile modulus of electrospun PLGA/c-SWCNT and PLGA/a-SWCNT nanocomposites by 127 and 226%, respectively, compared to that of electrospun PLGA membranes.