Related Experiment Video
Updated: Jan 26, 2026

Disentangling High Strength Copolymer Aramid Fibers to Enable the Determination of Their Mechanical Properties
Published on: September 1, 2018
Blends of Cyanate Ester and Phthalonitrile⁻Polyhedral Oligomeric Silsesquioxane Copolymers: Cure Behavior and
Xiaodan Li1,2, Fei Zhou3, Ting Zheng4
1School of Chemistry and Chemical Engineering, Jinggangshan University, No 28, Xueyuan Road, Qingyuan District, Ji'an 343009, China. lixiaodanlixiaodan@126.com.
Abstract:
Blends of cyanate ester and phthalonitrile⁻polyhedral oligomeric silsesquioxane copolymers were prepared, and their cure behavior and properties were compared via differential scanning calorimetry (DSC) analysis, thermogravimetric (TG) analysis, dynamic mechanical analysis, Fourier-transform far-infrared (FTIR) spectroscopy, and rheometric studies. The copolymer blends showed high chemical reactivity, low viscosity, and good thermal stability (TG temperatures were above 400 °C). The glass-transition temperature of the blends increased by at least 140 °C compared to cyanate ester resin. The blends are suitable for preparing carbon-fiber-reinforced composite materials via a winding process and a prepreg lay-up process with a molding technique. The FTIR data showed that the polymerization products contained triazine-ring structures that were responsible for the superior thermal properties.
Related Concept Videos
Curing of Concrete
Curing Methods
Accelerated Curing of Concrete
Physical and Chemical Properties of Matter
Characteristics and Nomenclature of Copolymers
Acid Halides to Esters: Alcoholysis

