Fabrication of nanotubules and microspheres from the self-assembly of amphiphilic monochain stearic acid derivatives

Zhang, Lidong, Li, Haiqing, Ha, Chang-Sik, Suh, Hongsuk and Kim, Il (2010) Fabrication of nanotubules and microspheres from the self-assembly of amphiphilic monochain stearic acid derivatives. Langmuir, 26 23: 17890-17895. doi:10.1021/la103480p


Author Zhang, Lidong
Li, Haiqing
Ha, Chang-Sik
Suh, Hongsuk
Kim, Il
Title Fabrication of nanotubules and microspheres from the self-assembly of amphiphilic monochain stearic acid derivatives
Journal name Langmuir   Check publisher's open access policy
ISSN 0743-7463
1520-5827
Publication date 2010-01-01
Sub-type Article (original research)
DOI 10.1021/la103480p
Open Access Status Not yet assessed
Volume 26
Issue 23
Start page 17890
End page 17895
Total pages 6
Place of publication Washington DC, United States
Publisher American Chemical Society
Language eng
Formatted abstract
In this study, stereocontrolled poly(N-isopropylacrylamide) (PIPAAm) brushes were grafted from surfaces by atom transfer radical polymerization (ATRP) in the presence of a Lewis acid, and the effect of PIPAAm brush tacticity on the thermoresponsive wettabiliy was investigated. PIPAAm grafted by ATRP in the presence of Y(OTf)3 showed high isotacticity, while the control brush polymerized in the absence of Y(OTf)3 was clearly atactic. The isotacticity and molecular weight of PIPAAm brushes were controlled by polymerization conditions. The wettability of isotactic PIPAAm-grafted surfaces decreased slightly below 10 °C, although the phase transition temperature of atactic surface was 30 °C, and the bulk isotactic polymer was water-insoluble between 5 and 45 °C.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Tue, 20 Sep 2011, 22:07:03 EST by Haiqing Li on behalf of Aust Institute for Bioengineering & Nanotechnology