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Study on the synthesis and properties of a new fluorine‐containing copolyarylate.
- Source :
- Journal of Applied Polymer Science; 9/15/2024, Vol. 141 Issue 35, p1-10, 10p
- Publication Year :
- 2024
-
Abstract
- A range of new fluorine‐containing copolyarylates were successfully produced through interfacial polymerization using hexafluorobisphenol A (BPAF) featuring a symmetric trifluoromethyl group structure, bisphenol B (BPB), and two acyl chloride monomers as raw materials. The results indicated that the synthesized amorphous copolyarylates exhibited good solubility, with number average molecular weights (Mn) of 19,000–44,000 g/mol, weight average molecular weights (Mw) of 66,000–159,000 g/mol, and intrinsic viscosities of 0.66–1.19 dL/g. The thermal stability of copolyarylates increased with the increase of BPAF monomer content (0~100%), which was manifested by the linear increase of glass transition temperature (Tg) from 201.6 to 237.1°C, and the increase of 5% thermogravimetric weight loss temperature (T5%) from 474.1 to 491.5°C. The tensile strength of copolyarylates ranged from 52.63 to 59.93 MPa, the tensile modulus ranged from 1102.08 to 1502.84 MPa, and the elongation at break ranged from 32.0 to 75.5%. In addition, the copolyarylates had good dielectric properties with a dielectric constant of 2.58–3.75 at 107 Hz and a dielectric loss tangent of 0.021–0.028. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218995
- Volume :
- 141
- Issue :
- 35
- Database :
- Complementary Index
- Journal :
- Journal of Applied Polymer Science
- Publication Type :
- Academic Journal
- Accession number :
- 178882718
- Full Text :
- https://doi.org/10.1002/app.55891