Article
  • Thiol-Michael Coupling and ROMP: Comparison of the Effects of  Steric Hindrance with Functional Dendronized Polymer
  • Tong Wu , Maojie Xuan, Xingyou Wang, and Meina Liu

  • School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, 100 Haiquan Road, China

  • 메르캅탄(Mercaptan)-마이클 결합(Michael Coupling)과 ROMP: 기능성 나뭇가지형 폴리머의 공간 방해 효과에 대해 비교
Abstract

Dendronized exo-7-oxanorbornene monomers were synthesized and polymerized via thiol–Michael coupling and ring-opening metathesis polymerization. The polymerization rate was highly dependent on the steric hindrance of the terminal group. The space linker between the polymerizable group and dendron was a crucial factor. Ru-based kinetics was investigated using nuclear magnetic resonance (NMR), which showed that the monomer was completely converted to a generally narrow polydispersity material. The second generation of functional macromonomer was grafted from the first with a different linker length and consumed completely at 50 oC in toluene. Considering the properties of the space linker, we found that a short space linker of dendronized exo-7-oxanorbornene macromonomer leads to narrow molecular weight distributions of obtained dendronized polymers. This work provides a further understanding of the effect of steric hindrance on dendronized polymers, thereby allowing the development of functional materials.


Keywords: thiol–Michael, ring-opening metathesis polymerization, functional polymer, steric hindrance

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2018 Impact Factor : 0.500
  • Indexed in SCIE

This Article

  • 2019; 43(6): 807-815

    Published online Nov 25, 2019

  • 10.7317/pk.2019.43.6.807
  • Received on Jan 11, 2019
  • Revised on May 2, 2019
  • Accepted on Sep 16, 2019

Correspondence to

  • Tong Wu, Meina Liu
  • School of Chemical and Environmental Engineering, Shanghai Institute of Technology

  • E-mail: 15395472710@163.com, meina.liu@sit.edu.cn