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Chemistry and Industry of Forest Products ›› 2023, Vol. 43 ›› Issue (2): 73-79.doi: 10.3969/j.issn.0253-2417.2023.02.010

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Preparation and Properties of Menthane Diamine Vitrimer Based on Dynamic Ester Bonds

Songlin DAI(), Yazhou XU, Haibo ZHANG, Zhendong ZHAO, Jing WANG, Yuxiang CHEN()   

  1. Institute of Chemical Industry of Forest Products, CAF; Key Lab. of Biomass Energy and Material, Jiangsu Province; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
  • Received:2022-01-11 Online:2023-04-28 Published:2023-04-26
  • Contact: Yuxiang CHEN E-mail:dsl17302550339@163.com;cyxlhs@126.com

Abstract:

Bio-based glass-like polymer(vitrimers) materials based on dynamic transesterification mechanism were prepared by the adduct of eleostearic acid and maleic anhydride(EMA) and epoxidizing menthane diamine(EMDA) derived from menthane diamine(MDA). The obtained materials were characterized and tested by Fourier transform infrared spectroscopy(FT-IR), dynamic thermomechanical analysis(DMA), thermogravimetric(TG) analysis, universal testing machine and other testing methods. The experimental results showed that the tensile strength of the materials was up to 35 MPa, the elongation at break was up to 12%, the 5% weight loss temperature was up to 264℃, and the glass transition temperature(Tg) was up to 119℃. The crossliking density increased first and then decreased with the increasing content of epoxidized menthane diamine. The materials had Tg-based shape memory ability and under went topological rearrangement of cross-linked structure at 180℃.The degradation of the material was achieved by the reaction of ethanolamine with the ester bond in the materials, and it was proved by gel permeation chromatography(GPC) that the materials could be degraded into oligomers with Mn of 2 594 and PDI of 1.09 at 130℃ for 8 h.

Key words: bio-based, glass-like polymers, dynamic ester exchange, shape memory, degradable

CLC Number: