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Star Poly(N-isopropylacrylamide) Tethered to Polyhedral Oligomeric Silsesquioxane (POSS) Nanoparticles by a Combination of ATRP and Click Chemistry
Joint Authors
Yeh, Ding-Ru
Kuo, Shiao-Wei
Hong, Jing-Long
Huang, Yu-Chan
Fan, Shih-Kang
Ko, Fu-Hsiang
Kuo, Shiao-Wei
Chang, Feng-Chih
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-07
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
New star poly(N-isopropylacrylamide)-b-polyhedral oligomeric silsesquioxane (PNIPAm-b-POSS) copolymers were synthesized from octa-azido functionalized POSS (N3-POSS) and alkyne-PNIPAm, which was prepared using an alkyne-functionalized atom transfer radical polymerization (ATRP) initiator (propargyl 2-bromo-2-methylpropionamide), via click chemistry.
These star PNIPAm-b-POSS copolymers undergo a sharp coil-globule transition in water at above 32°C changing from a hydrophilic state below this temperature to a hydrophobic state above it, which is similar to linear PNIPAm homopolymers.
More interestingly, we found that these star polymers exhibited strong blue photoluminescence in water above a lower critical solution temperature (LCST).
This photoluminescence was likely due to the constrained geometric freedom and relatively rigid structure caused by intramolecular hydrogen bonding within the star PNIPAm polymers, which exhibit an intrinsic fluorescent behavior.
American Psychological Association (APA)
Kuo, Shiao-Wei& Hong, Jing-Long& Huang, Yu-Chan& Kuo, Shiao-Wei& Fan, Shih-Kang& Ko, Fu-Hsiang…[et al.]. 2012. Star Poly(N-isopropylacrylamide) Tethered to Polyhedral Oligomeric Silsesquioxane (POSS) Nanoparticles by a Combination of ATRP and Click Chemistry. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-1029271
Modern Language Association (MLA)
Kuo, Shiao-Wei…[et al.]. Star Poly(N-isopropylacrylamide) Tethered to Polyhedral Oligomeric Silsesquioxane (POSS) Nanoparticles by a Combination of ATRP and Click Chemistry. Journal of Nanomaterials No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-1029271
American Medical Association (AMA)
Kuo, Shiao-Wei& Hong, Jing-Long& Huang, Yu-Chan& Kuo, Shiao-Wei& Fan, Shih-Kang& Ko, Fu-Hsiang…[et al.]. Star Poly(N-isopropylacrylamide) Tethered to Polyhedral Oligomeric Silsesquioxane (POSS) Nanoparticles by a Combination of ATRP and Click Chemistry. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-1029271
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029271