Wu, Qi; Ma, Xiaoru; Zheng, Feng; Lu, Xuemin; Lu, Qinghua published the artcile< Synthesis of highly transparent and heat-resistant polyimides containing bulky pendant moieties>, Application In Synthesis of 4415-87-6, the main research area is transparent heat polyimide bulky pendant moiety.
A new diamine with bulky pendant biphenyl and ortho-position di-Me structures, 4,4′-((1,1′-biphenyl)-4-ylmethylene)bis(2,6-dimethylaniline), was synthesized via a one-pot reaction of 4-biphenyl carboxaldehyde and 2,6-dimethylaniline. The diamine was employed to polymerize with several dianhydrides via one-step condensation under high-temperature conditions. The light yellow or colorless polyimide (PI) films obtained were found to have cut-off wavelengths in the range 286-358 nm and transmittance over 80% in the visible region (400-780 nm). Meanwhile, these PIs possessed excellent solubility in common organic solvents, even in low-boiling-point solvents such as chloroform (CHCl3), dichloromethane (CH2Cl2) and THF. The glass transition temperatures (Tg) of the PIs were determined to exceed 343 °C, even to 456 °C. All PI films were flexible with a tensile strength of 78-119 MPa, a Young’s modulus of 2.0-2.5 GPa and elongation at break of 4.0%-8.2%. Therefore, these colorless PIs can be used as candidate materials for flexible display substrates. © 2019 Society of Chem. Industry.
Polymer International published new progress about Boiling point. 4415-87-6 belongs to class tetrahydrofurans, and the molecular formula is C8H4O6, Application In Synthesis of 4415-87-6.
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem