Synthesis of Multiarmed Poly(3-hexyl thiophene) Star Polymer with Microgel Core by GRIM and ATRP Methods
- Authors
- Kim, Hyun-Ji; Lee, Yun Jae; Hwang, Seung Sang; Choi, Dong Hoon; Yang, Hoichang; Baek, Kyung-Youl
- Issue Date
- 2011-10-01
- Publisher
- WILEY
- Citation
- JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.49, no.19, pp.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 (M-p = 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 pi-pi 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. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 4221-4226, 2011
- Keywords
- LIVING RADICAL POLYMERIZATION; SHAPED POLYMERS; LIVING RADICAL POLYMERIZATION; SHAPED POLYMERS; atom transfer radical polymerization (ATRP); conducting polymers; crosslinking; microgels; star polymers
- ISSN
- 0887-624X
- URI
- https://pubs.kist.re.kr/handle/201004/129903
- DOI
- 10.1002/pola.24864
- Appears in Collections:
- KIST Article > 2011
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