Article
  • Surface Functionalization of Graphene Oxide via Activators Regenerated by Electron Transfer for Atom Transfer Radical Polymerization and Its Effect on the Performance of Poly(lactic acid)
  • Lang Zheng and Weijun Zhen

  • Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 830046

  • ATRP의 전자전달로 생성된 활성제를 이용한 산화그래핀의 표면기능화와 Poly(lactic acid)의 성능에 미치는 영향
Abstract

An improved Hummers method was used to prepare graphene oxide (GO). Then, the orthogonal experiment design methods were used to select the optimum conditions of preparation for graphene oxide-polymethyl methacrylate (GO-PMMA) via activators regenerated by electron transfer for atom transfer radical polymerization (AGET-ATRP). The optimum preparation conditions were determined by orthogonal tests. Furthermore, poly(lactic acid) (PLA)/GO-PMMA nanocomposites were prepared by melt blending to improve the comprehensive performance of PLA. Analysis results indicated that methyl methacrylate (MMA) was successfully grafted onto GO, and the addition of 0.3 wt% of GO-PMMA increased the tensile strength, elongation at break, and impact strength of PLA/GO-PMMA nanocomposites by 7.82, 40.66, and 50.62%, respectively, compared with PLA. Moreover, GO-PMMA eliminated the cold crystallization of PLA matrix and improved the crystallinity of PLA by 27.55%. In all, this study provided an effective and feasible method for improving the comprehensive performance of PLA.


Keywords: poly(lactic acid), graphene oxide, activators regenerated by electron transfer for atom transfer radical polymerization (AGET-ATRP), nanocomposites

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2018; 42(4): 581-593

    Published online Jul 25, 2018

  • 10.7317/pk.2018.42.4.581
  • Received on Nov 14, 2017
  • Revised on Jan 24, 2018
  • Accepted on Jan 30, 2018

Correspondence to

  • Weijun Zhen
  • Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 830046

  • E-mail: zhenweijun6900@163.com