The “living” Feature of the ATRP Macroinitiators in Different Catalytic Systems

Yazhen Wang; Li Liu; Shaobo Dong; Xilai Zhou; Chenglong Wang; Zhen Shi

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자료유형: 학술저널

저자정보: Yazhen Wang (Qiqihar University) Li Liu (Qiqihar University) Shaobo Dong (Qiqihar University) Xilai Zhou (Qiqihar University) Chenglong Wang (Qiqihar University) Zhen Shi (Qiqihar University)

저널정보: 대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.17 No.2

발행연도: 2021.1

수록면: 136 - 141 (6page)

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Atom transfer radical polymerization (ATRP) has achieved widespread use in living polymerization. However, until now there hasbeen little report that macroinitiators initiate polymerization in different catalytic systems. The preparation of bromine-terminatedpolymethyl methacrylate (PMMA-Br) and chlorine-terminated PMMA (PMMA-Cl) were carried out via reverse atom transferradical polymerization (RATRP). The PMMA with halogen termination and narrow polydispersity (Mn = 12,000–15,000 g/mol,Mw/Mn = 1.1–1.2) were used as macroinitiators. The block copolymer of polymethyl methacrylate and polyacrylonitrile (PMMAb-PAN) was prepared in different catalytic systems through normal ATRP. The analyses of the 1H NMR showed that the PMMAprepared by RATRP were end-functionalized by halogen atoms, demonstrated the activities of the PMMA macroinitiators. Themolecular weight and polydispersity index (PDI) of the polymers were analyzed using gel permeation chromatography (GPC). The results indicated that the block polymers that the molecular weight of the block copolymer after chain extension has increasedsignificantly and the molecular weight distribution is narrow (Mn = 17,000–25,000 g/mol, Mw/Mn = 1.1–1.3). The kinetics ofthese polymerization processes were studied as a function of monomers to the macroinitiator molar ratio. It was found that thepolymerizations in different catalytic systems coincidence first-order kinetics with respect to monomers.

#ATRP · Living feature · Block copolymer · Different catalytic system

참고문헌 (23)

참고문헌 신청

Chen, L. / 2020 / Synthesis and self-assembly of brushshapedblock copolymer structure via ATRP and ROP / Opt. Mater 11:110590

Gnanaseelan, M. / 2019 / All methacrylate block copolymer/TiO 2 nanocomposite via ATRP and In-situ sol-gel process / Mater. Today Commun 22:100728

Wang, Y. Z. / 2020 / Synthesis of Modifi ed TiO 2 Nanoparticles with Polyacrylonitrile and Poly(hydroxyethyl acrylate)via ATRP / Chemistryselect 5:4695~4700

Altintas, O. / 2015 / ATRP-based polymers with modular ligation points under thermal and thermomechanical stress / Polym. Chem 6:2854~2868

Fleet, R. / 2011 / Novel glycopolymer brushes via ATRP: 2. Thermal and mechanical properties / Macromol. Chem. Phys 212:2209~2216

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