139265-69-3Relevant academic research and scientific papers
Symmetric and asymmetric spiro-type colorless poly(ester imide)s with low coefficients of thermal expansion, high glass transition temperatures, and excellent solution-processability
Hasegawa, Masatoshi,Takahashi, Shinya,Tsukuda, Soichi,Hirai, Tomoki,Ishii, Junichi,Yamashina, Yukari,Kawamura, Yoshinori
, p. 167 - 184 (2019)
In this work, we present several new poly(ester imide)s (PEsIs) with low coefficients of thermal expansion (CTE), excellent optical transparency, very high heat resistance (Tg), film ductility, and solution-processability. Symmetric and asymmet
Investigation of synthesis, thermal properties and curing kinetics of fluorene diamine-based benzoxazine by using two curing kinetic methods
He, Xuan-Yu,Wang, Jun,Ramdani, Noureddine,Liu, Wen-Bin,Liu, Li-Jia,Yang, Lei
, p. 51 - 58 (2013)
A novel diamine-based benzoxazine monomer containing aryl ether and bulky fluorene groups (BEF-p) was prepared from the reaction of 9,9-bis-[4-(p- aminophenoxy)-phenyl]fluorene with paraformaldehyde and phenol. The chemical structure of monomer was confirmed by Fourier-transform infrared (FTIR) and 1H and 13C nuclear magnetic resonance spectroscopy ( 1H and 13C NMR). The polymerization behavior of monomer was analyzed by differential scanning calorimetry (DSC) and FTIR. The curing kinetics was studied by non-isothermal DSC, and the kinetic parameters were determined. The autocatalytic model based on two kinetic methods (Starink-LSR method and direct LSR method) showed good agreement with experimental results. The thermal and mechanical properties of poly(BEF-p) were evaluated with DSC, dynamic mechanical thermal analysis (DMTA), and thermogravimetric analysis (TGA). The results showed that the cured polymer exhibited higher glass transition temperature (Tg) and better thermal stability compared with diaminodiphenylmethane-based benzoxazine(P-ddm), and was slightly lower than those of fluorene diamine-phenol-based polybenzoxazine (poly(BF-p)). Copyright
Bis(azobenzene) diamines and photomechanical polymers made therefrom
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Page/Page column 21, (2017/05/31)
Bis(azo-benzene) diamine monomers and a method of synthesizing the monomers are provided. The bis(azo-benzene) diamine monomers, in combination with amine reactive monomers, form polymers, such as polyimides and copolyimides, having photomechanical and thermomechanical properties.
AROMATIC DIAMINE AND PROCESS FOR PRODUCING THE SAME
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Page/Page column 8-10, (2008/06/13)
An aromatic diamine represented by the following formula (I): (wherein R1 to R6 each independently represent hydrogen, an alkyl group or an aryl group and may be the same or different). The aromatic diamine is useful as a curing agent for a monomer such as a polyimide, polyamide or a polyamideimide, a polyurethane, an epoxy resin or the like.
