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- Title
Synthesis and characterization of fluorinated polyurethaneimide electro-optic waveguide material with novel structure.
- Authors
Wang, Long-De; Tong, Ling; Rong, Jie-Wei; Wu, Jian-Wei
- Abstract
Structurally novel fluorinated polyurethaneimide (PUI) electro-optic polymer based on chromophore molecule b, diisocyanate MDI and anhydride BPAFDA was synthesized by stepwise polymerization of oligomer PUI with fluorinated aromatic diamines BATB and BATPP. Electro-optic (EO) PUI chain structure had the structure of polyimide and polyurethane chain segments, integrating the advantages of polyimide and polyurethane. The PUI possessed good film-forming property, a high glass transition temperature (Tg = 193 °C) and good thermal stability (5 % weight loss temperature Td up to 320 °C). Y-Structured inverted ridge polymer optical waveguides were designed and fabricated using the PUI as the waveguide core material. The PUI had good optical performance with an EO coefficient (γ33) of 79 pm/V and 1.1 dB/cm optical propagation loss at a wavelength of 1550 nm. The results showed that the synthesized PUI met the performance requirements for the preparation of polymer optical waveguide devices and was suitable as a polymer electro-optic waveguide material.
- Subjects
GLASS transition temperature; POLYCONDENSATION; LIGHT propagation; OPTICAL waveguides; CORE materials; WAVEGUIDES; OPTICAL devices
- Publication
Journal of Polymer Engineering, 2024, Vol 44, Issue 4, p243
- ISSN
0334-6447
- Publication type
Article
- DOI
10.1515/polyeng-2023-0217