Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/99208
標題: Synthesis of Poly(ε-caprolactone)-Based Miktoarm Star Copolymers through ROP, SA ATRC, and ATRP
作者: Sathesh, Venkatesan
Chen, Jem-Kun
Chang, Chi-Jung
Aimi, Junko
Chen, Zong-Cheng
Hsu, Yu-Chih
Huang, Yi-Shen
Huang, Chih-Feng
黃智峯
關鍵字: atom transfer radical polymerization;miktoarm star copolymers;ring-opening polymerization;styrenics-assisted atom transfer radical coupling
Project: Polymers, Volume 10, Issue 8
摘要: 
The synthesis of novel branched/star copolymers which possess unique physical properties is highly desirable. Herein, a novel strategy was demonstrated to synthesize poly(ε-caprolactone) (PCL) based miktoarm star (μ-star) copolymers by combining ring-opening polymerization (ROP), styrenics-assisted atom transfer radical coupling (SA ATRC), and atom transfer radical polymerization (ATRP). From the analyses of gel permeation chromatography (GPC), proton nuclear magnetic resonance (¹H NMR), and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), well-defined PCL-μ-PSt (PSt: polystyrene), and PCL-μ-PtBA (PtBA: poly(tert-butyl acrylate) μ-star copolymers were successfully obtained. By using atomic force microscopy (AFM), interestingly, our preliminary examinations of the μ-star copolymers showed a spherical structure with diameters of ca. 250 and 45 nm, respectively. We successfully employed combinations of synthetic techniques including ROP, SA ATRC, and ATRP with high effectiveness to synthesize PCL-based μ-star copolymers.
URI: http://hdl.handle.net/11455/99208
DOI: 10.3390/polym10080858
Appears in Collections:化學工程學系所

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