Systematic control of mesh size in hydrogels by initiated chemical vapor deposition

被引：24
作者：
Yaguee, Jose Luis [1 ]
Gleason, Karen K. [1 ]
机构：
[1] MIT, Dept Chem Engn, Cambridge, MA 02139 USA
来源：
SOFT MATTER | 2012年 / 8卷 / 10期
关键词：
POLY(2-HYDROXYETHYL METHACRYLATE); THIN-FILMS; REACTIVITY; DIFFUSION; ICVD;
D O I：
10.1039/c2sm07137a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This investigation has been focused on the development of a cylindrical-shape hydrogel microtube to be used as a biosensor for medical applications. 2-Hydroxyethyl methacrylate copolymerized with ethylene glycol diacrylate p(HEMA-co-EGDA) has been synthesized by initiated chemical vapor deposition (iCVD) using an anodic aluminum oxide (AAO) membrane as a template. Fourier transform infrared spectroscopy (FTIR) was used to determine the reactivity ratio of the copolymerization. Spectroscopy ellipsometry and UV-vis spectrophotometry were performed to study the swelling and mesh size of the polymer layer. Results showed that the polymer mesh size can be tuned by systematic control of cross-linking density to achieve selective diffusion of species through its network.
引用
收藏
页码：2890 / 2894
页数：5
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