Article
  • Metathetic Degradation of Styrene-Butadiene Rubber via Ru-Alkylidene Complex Catalyzed Reaction
  • Zou T, Jiang B, Lin S, Pan Q
  • Ru-알킬리덴 착물 촉매를 이용한 스티렌-부타디엔 고무의 복분해 반응
Abstract
Metathetic degradation and functionalization of styrene-butadiene rubber (SBR) were performed with allyl hexanoate, allyl chloroacetate, 5-hexenyl acetate and trifluoroethyl methacrylate as chain transfer agents (CTAs) using Grubbs 2nd generation catalyst. It has been demonstrated that the catalyst concentration, CTA concentration and reaction time were major factors influencing the molecular weights and polydispersity indices of targeted telechelic SBR oligomers. Well-defined oligomers with molecular weights ranging from 700 to 36600 g mol-1 and polydispersity indices ranging from 1.17 to 4.79 were realized. The structures of the SBR oligomers were determined by FTIR and 1H NMR analyses, which indicated that the functional groups of the CTAs were successfully attached onto the end of the polymer chains. To further investigate the performance of SBR oligomers, differential scanning calorimetry (DSC) analysis was performed, which indicated that the glass transition temperature (Tg) of the metathesis products decreased with longer reaction time.

Keywords: metathetic degradation; functionalization; styrene-butadiene rubber; ruthenium catalyst

  • 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

  • 2016; 40(5): 663-670

    Published online Sep 25, 2016

  • 10.7317/pk.2016.40.5.663
  • Received on Feb 1, 2016
  • Revised on Nov 30, -0001
  • Accepted on May 7, 2016

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