Synthesis of Multiarmed Poly(3-hexyl thiophene) Star Polymer with Microgel Core by GRIM and ATRP Methods

Title
Synthesis of Multiarmed Poly(3-hexyl thiophene) Star Polymer with Microgel Core by GRIM and ATRP Methods
Authors
김현지이윤재황승상최동훈양회창백경열
Keywords
스타폴리머; 유기반도체; 센서; atom transfer radical polymerization (ATRP); conducting polymers; crosslinking; microgels; star polymers
Issue Date
2011-10
Publisher
Journal of polymer science Part A, Polymer chemistry
Citation
VOL 49, NO 19, 4221-4226
Abstract
Regioregular poly(3-hexyl thiophene) (rr-P3HT)- based star polymers were synthesized by a crosslinking reaction of the linear rr-P3HT macroinitiator and ethylene glycol dimethacrylate (EGDMA) crosslinker through Ru-based atom transfer radical polymerization (ATRP), where the rr-P3HT macroinitiator was prepared by Grignard metathesis method (GRIM) followed by end functionalization of the ATRP initiator with chlorophenylacetate (CPA) to the rr-P3HT. Relatively high molecular weight of the star polymers were obtained (Mp = 8,988,000 g/mol), which consisted of large numbers of the rr-P3HT arm chains radiating from the EGDMA-based microgel core. The yield of the star polymers were strongly affected by the added amount of the EGDMA crosslinker. The crystalline structure of the rr-P3HT by intermolecular π-π stacking interaction gradually decreased as the star polymer formed, which was confirmed by differential scanning calorimeter (DSC), atomic force microscopy (AFM), and electro-optical analyses.
URI
http://pubs.kist.re.kr/handle/201004/41007
ISSN
0887-624X
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE