Immobilization of semisoft colloidal crystals formed by polymer-brush-afforded hybrid particles

Huang, Yun, Morinaga, Takashi, Tai, Yugo, Tsujii, Yoshinobu and Ohno, Kohji (2014) Immobilization of semisoft colloidal crystals formed by polymer-brush-afforded hybrid particles. Langmuir, 30 25: 7304-7312. doi:10.1021/la5011488


Author Huang, Yun
Morinaga, Takashi
Tai, Yugo
Tsujii, Yoshinobu
Ohno, Kohji
Title Immobilization of semisoft colloidal crystals formed by polymer-brush-afforded hybrid particles
Journal name Langmuir   Check publisher's open access policy
ISSN 1520-5827
0743-7463
Publication date 2014-07-01
Year available 2014
Sub-type Article (original research)
DOI 10.1021/la5011488
Open Access Status Not yet assessed
Volume 30
Issue 25
Start page 7304
End page 7312
Total pages 9
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Formatted abstract
An immobilization technique for semisoft colloidal crystals, which are ordered arrays of polymer-brush-afforded hybrid particles synthesized by surface-initiated living radical polymerization (SI-LRP), is reported. Silica particles were first grafted with well-defined block copolymers of poly(methyl methacrylate-co-hydroxyethyl methacrylate)-b-poly(methyl methacrylate), P(MMA-co-HEMA)-b-PMMA by SI-LRP, which gave a graft density as high as 0.7 chains/nm2. The HEMA units reacted with 2-isocyanatoethyl methacrylate to introduce vinyl groups at the outer layer of the polymer-brush shell. The modified hybrid particles formed a colloidal crystal in a solution containing a small amount of free polymers with vinyl groups. The colloidal crystal was photoirradiated in the presence of a photoradical initiator to immobilize it through a cross-linking reaction among the vinyl groups. The structural analyses of the colloidal crystals before and after the photoirradiation were carried out by confocal laser scanning microscopy; the results showed that the periodic structures of the crystals were maintained after immobilization.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 10 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sat, 14 May 2016, 05:31:04 EST by System User on behalf of Learning and Research Services (UQ Library)