TY - JOUR
T1 - Novel strategy for tailoring of SiO2 and TiO2 nanoparticle surfaces with poly(ε-caprolactone)
AU - Karagoz, Bunyamin
AU - Galli, Giancarlo
AU - Durmaz, Hakan
AU - Hizal, Gurkan
AU - Tunca, Umit
AU - Bicak, Niyazi
PY - 2010/3
Y1 - 2010/3
N2 - 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.
AB - 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.
KW - Adsorption
KW - Nanoparticle
KW - Poly(ε-caprolactone)
KW - Surface modification
KW - Surface-initiated polymerization
KW - Unsaturated polyester
UR - http://www.scopus.com/inward/record.url?scp=77952236060&partnerID=8YFLogxK
U2 - 10.1007/s00396-009-2167-0
DO - 10.1007/s00396-009-2167-0
M3 - Article
AN - SCOPUS:77952236060
SN - 0303-402X
VL - 288
SP - 535
EP - 542
JO - Colloid and Polymer Science
JF - Colloid and Polymer Science
IS - 5
ER -