Abstract
A novel dual cure photopolymerizable system was developed by combining two plant-derived acrylic monomers, acrylated epoxidized soybean oil and vanillin dimethacrylate, as well as the thiol monomer pentaerythritol tetrakis (3-mercaptopropionate). Carefully selected resin composition allowed the researchers to overcome earlier stability/premature polymerization problems and to obtain stable (up to six months at 4 °C) and selectively-polymerizable resin. The resin demonstrated rapid photocuring without an induction period and reached a rigidity of 317.66 MPa, which was more than 20 times higher than that of the other vanillin-based polymers. Improved mechanical properties and thermal stability of the resulting cross-linked photopolymer were obtained compared to similar homo- and copolymers: Young’s modulus reached 4753 MPa, the compression modulus reached 1634 MPa, and the temperature of 10% weight loss was 373 °C. The developed photocurable system was successfully applied in stereolithography and characterized with femtosecond pulsed two-beam initiation threshold measurement for the first time. The polymerization threshold of the investigated polymer was determined to be controlled by the sample temperature, making the footprint of the workstations cheaper, faster, and more reliable.
Funder
Research Council of Lithuania
Subject
Polymers and Plastics,General Chemistry
Reference42 articles.
1. Polymerization mechanisms initiated by spatio-temporally confined light;Skliutas;Nanophotonics,2021
2. Mesoscale laser 3D printing;Baldacchini;Opt. Express,2019
3. Recent trends in the development of biomass-based polymers from renewable resources and their environmental applications;Raza;J. Taiwan Inst. Chem. Eng.,2020
4. Silva, J., Grilo, L., Gandini, A., and Lacerda, T. (2021). The Prospering of Macromolecular Materials Based on Plant Oils within the Blooming Field of Polymers from Renewable Resources. Polymers, 13.
5. From plant phenols to novel bio-based polymers;Zhanga;Prog. Polym. Sci.,2022
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献