Novel strategy for tailoring of SiO2 and TiO2 nanoparticle surfaces with poly(ε-caprolactone)

被引:0
|
作者
Bunyamin Karagoz
Giancarlo Galli
Hakan Durmaz
Gurkan Hizal
Umit Tunca
Niyazi Bicak
机构
[1] Istanbul Technical University,Department of Chemistry
[2] Pisa University,Department of Chemistry
来源
Colloid and Polymer Science | 2010年 / 288卷
关键词
Nanoparticle; Surface-initiated polymerization; Poly(ε-caprolactone); Adsorption; Surface modification; Unsaturated polyester;
D O I
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中图分类号
学科分类号
摘要
A novel strategy was developed for tailoring of SiO2 and TiO2 nanoparticle surfaces with poly(ε-caprolactone) (PCL). Thus, a self-curable polyester, poly(2-hydroxypropylene maleate) was adsorbed on the nanoparticle surfaces and heated to 180 °C to give a cross-linked polyester layer with residual hydroxyalkyl groups on their surfaces. Surface-initiated polymerization of ε-caprolactone from hydroxyalkyl groups on the surfaces yielded core-shell nanoparticles with cross-linked core and PCL shells (22.2–71.4%). The organic shell layers around the nanoparticle cores were evidenced by transmission electron microscopy, dynamic light scattering, and thermogravimetric analyses techniques. The core-shell nanoparticles were then employed in preparing the stable and the homogenous dispersions with poly(methyl methacrylate-stat-butyl acrylate) solutions. An application of the solutions onto glass substrates yielded uniform and nearly transparent free standing films (40–60 μm) with good homogeneity as inferred from scanning electron microscopy pictures.
引用
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页码:535 / 542
页数:7
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