High-biobased-content UV-curable oligomers derived from tung oil and citric acid: Microwave-assisted synthesis and properties

编号 020026002

推送时间 20201012

研究领域 林产化工 

年份 2020 

类型 期刊 

语种 英语

标题 High-biobased-content UV-curable oligomers derived from tung oil and citric acid: Microwave-assisted synthesis and properties

来源期刊 European Polymer Journal

期 第260期

发表时间 20200910

关键词 Tung oil;  Citric acid;  UV-curable coatings;  Microwave-assisted preparation;  Guaiacol; 

摘要 By using the bioresources of tung oil and citric acid, two novel UV-curable oligomers (TMCG1 and TMCG2) were synthesized via microwave technology and confirmed by FT-IR, 1H NMR, and 13C NMR. The total reaction time was only 30 min, and the obtained oligomers showed high biobased contents (over 60%). Furthermore, a series of UV-curable coatings were constructed by copolymerizing the oligomers with a biobased reactive diluent (GA) from guaiacol. The resulting UV-cured materials achieved both high biobased content and high performance. For instance, the cured TMCG1 film with 10% of GA showed a biobased content of 72.4%, tensile strength of 16.6 MPa, glass transition temperature of 74.1 °C, maximum thermal degradation temperature of 437.2 °C, adhesion of 2 grade, pencil harness of 2H, and flexibility of 2 mm. Therefore, the developed biobased oligomers show great potential to be applied in UV-curable coatings.

服务人员 尚玮姣

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