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Thermosetting Resins Based on a Self‐Crosslinkable Monomer/Polymer Possessing Meldrum's Acid Groups
Author(s) -
Chou YuKai,
Chen Yi,
Lin LiangKai,
Liu YingLing
Publication year - 2017
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201700147
Subject(s) - thermosetting polymer , ketene , thermal stability , polymer chemistry , monomer , glass transition , materials science , furan , polymerization , polymer , yield (engineering) , char , fourier transform infrared spectroscopy , chemistry , organic chemistry , chemical engineering , composite material , pyrolysis , engineering
Thermosetting resins based on Meldrum's acid (MA) derivatives as monomers show high thermal stability and inherent low‐dielectric constants. In this work, a multifunctional MA derivative (MA‐bisF) possessing two MA and two furan groups is newly prepared. Characterization of MA‐bisF has been carried out with Fourier transform infrared, 1 H NMR, mass spectroscopy, and elemental analysis. Self‐crosslinking MA‐bisF results in the corresponding thermosetting resin mediating the addition reaction between ketene/ketene and ketene/furan groups. MA‐bisF is also utilized as a modifier for bismaleimide (BMI) resins through polymerizing MA‐bisF and BMI through Diels–Alder reaction. The corresponding crosslinked MA‐bisF/BMI resin possesses a high content of fused‐ring structure and a high crosslinking density, so as to exhibit high thermal stability (392 °C), high glass transition temperature (262 °C), high char yield (48 wt%), and a low‐dielectric constant of 2.78 at 1 MHz. A new type of reactive polymers and the corresponding high‐performance crosslinked resins has been demonstrated.