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- Title
Synthesis, characterization, and properties of a novel propargyl ether naphthalene phenolic resin.
- Authors
Chen, Yuzhi; Guo, Kangkang; Wang, Fan; Zhu, Yaping; Qi, Huimin
- Abstract
In this study, 1,5‐dihydroxynaphthalene moiety was introduced into a novolac resin structure, and propargyl ether naphthalene phenolic resin (PNPF) was synthesized by the Williamson etherification reaction, which improved the heat resistance of the resin and its processability. The structure of the PNPF resin was characterized using 1H NMR and FTIR analysis, and its processability, heat resistance, thermal expansion, and dielectric properties were evaluated. The results revealed that the addition of 1,5‐dihydroxylhine, increased the reaction activity of the PNPF resin, and decreased its initial curing temperature, with the resin exhibiting excellent processability. The cured resin also showed excellent heat resistance and thermomechanical properties. The 5% weight loss temperature (Td5) and glass transition temperature (Tg) of the resin increased to 437.61 and 362.04°C, respectively, while the coefficient of thermal expansion decreased from 60.17 to 44.52 ppm, with a reduction of 26.01%. Moreover, the dielectric constant and dielectric loss of the cured resin were 3.02 and 0.00239, respectively.
- Subjects
PHENOLIC resins; NAPHTHALENE; GLASS transition temperature; PERMITTIVITY; BENZENEDICARBONITRILE; NAPHTHALENE derivatives; THERMOMECHANICAL properties of metals
- Publication
Polymers for Advanced Technologies, 2024, Vol 35, Issue 1, p1
- ISSN
1042-7147
- Publication type
Article
- DOI
10.1002/pat.6227