ICCAS OpenIR
Smart organic/inorganic hybrid nanoobjects with controlled shapes by self-assembly of gelable block copolymers
Zhang, Ke; Gao, Lei; Chen, Yongming
2008-03-11
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume41Issue:5Pages:1800-1807
AbstractA series of well-defined functional gelable diblock copolymers, poly(3-(triethoxysilyl)propyl methacrylate)-block-poly(2-vinylpyridine) (PTEPM-b-P2VP), were synthesized by a two-step reversible addition-fragmentation chain transfer (RAFT) mediated radical polymerization procedure. The self-assembly of PTEPMb-P2VP diblock copolymers in the bulk was studied by a combination of small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). With change of the copolymer composition, three different microphase-separated morphologies, i.e., lamellae, hexagonally packed cylinders, and spheres, were obtained. The in-situ self-gelation was subsequently carried out under hydrochloric acid vapor to lock the PTEPM phases. By dispersing the gelated bulk materials with ordered structures in an acidic water solution (pH = 3), the isolated organic/inorganic hybrid nanoobjects with controlled shapes including plates, cylinders, and spheres bearing protonated P2VP hairs were prepared. By deprotonation of the P2VP hairs, these novel nanoobjects may precipitate from the solution, and therefore, they are pH-sensitive. Furthermore, when applying these hybrid nanoobjects with P2VP hairs as the templates for supporting gold nanoparticles, novel pH-responsive functional nanoobjects with Au nanoparticles organized in different dimension were obtained.
DOI10.1021/ma7021698
Indexed BySCI
Language英语
WOS IDWOS:000253728100033
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64718
Collection中国科学院化学研究所
Corresponding AuthorChen, Yongming
AffiliationChinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ke,Gao, Lei,Chen, Yongming. Smart organic/inorganic hybrid nanoobjects with controlled shapes by self-assembly of gelable block copolymers[J]. MACROMOLECULES,2008,41(5):1800-1807.
APA Zhang, Ke,Gao, Lei,&Chen, Yongming.(2008).Smart organic/inorganic hybrid nanoobjects with controlled shapes by self-assembly of gelable block copolymers.MACROMOLECULES,41(5),1800-1807.
MLA Zhang, Ke,et al."Smart organic/inorganic hybrid nanoobjects with controlled shapes by self-assembly of gelable block copolymers".MACROMOLECULES 41.5(2008):1800-1807.
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