文献类型：期刊文献

英文题名：Study on the synergistic anticorrosion property of a fully bio-based polybenzoxazine copolymer resin

作者：Zhang, Yitong[1];Liu, Xiaoyun[1];Zhan, Guozhu[2];Zhuang, Qixin[1];Zhang, Ruhong[1];Qian, Jun[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Adv Polymer Mat Shanghai, Shanghai 200237, Peoples R China;[2]CASC, Acad 8, Inst 806, Huzhou 313000, Peoples R China

年份：2019

卷号：119

起止页码：477

外文期刊名：EUROPEAN POLYMER JOURNAL

收录：;EI(收录号：20193007226753);WOS:【SCI-EXPANDED(收录号:WOS:000489191900053)】；

基金：This work was financially supported by the National Natural Science Foundation of China (51573045, 51773060), the International Collaboration Research Program of Science and Technology Commission of Shanghai (16520722000), Shanghai Natural Science Foundation (16ZR1407700), Shanghai Rising-Star Program (17QB1401200), and Shanghai Aerospace Science and Technology Innovation Fund (SAST2017-115).

语种：英文

外文关键词：Renewable; Polybenzoxazine; Anticorrosion; Dielectric constants

摘要：In this paper a novel bio-based benzoxazine, dehydroabietylamine benzoxazine monomer (D-Bz), was synthesized and a series of copolymers were prepared by using D-Bz and two other bio-based benzoxazines 6-allyl-8-methoxy-3-octadecyl-3, 4-dihydro-2H-benzoxazine (S-Bz) and 6-allyl-3 -(furan-2-ylmethl)-8-methoxy-3, 4-dihydro-2H-benzoxazine (F-Bz). The structure, morphology and curing process are characterized by H-1 nuclear magnetic resonance spectroscopy (H-1 NMR), mass spectrometry (MS), fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Electrochemical techniques such as open circuit voltage time (OCPT), Tafel and electrochemical impedance spectra (EIS) were used to study their electrochemical corrosion properties. Results show that among these copolymer, when the ratio of S-Bz: D-Bz: F-Bz is 1:6:3, the copolymer has good synergistic effects, showing a lower dielectric constant (2.47 at 1000 Hz), higher crosslink density (5.29*E(-4 )mol/ml), lower corrosion current (0.030 mu A/cm(2)) and the best electrochemical corrosion efficiency (99.73%).