Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 143-24-8, Name is 2,5,8,11,14-Pentaoxapentadecane, SMILES is COCCOCCOCCOCCOC, belongs to ethers-buliding-blocks compound. In a document, author is Li, Pengcheng, introduce the new discover, Product Details of 143-24-8.
Poly(arylene ether nitrile) copolymers containing pendant phenyl: Synthesis and properties
A series of poly(arylene ether nitrile) copolymers (PENAPs) were synthesized with bisphenol A (BP-A), bisphenol AP (BP-AP) and 2,6-Dichlorobenzonitrile (DCBN) via a nucleophilic substitution polycondensation reaction. FTIR and H-1-NMR were used to confirm the structure of PENAPs. Glass transition temperature (T-g) of PENAPs determined by differential scanning calorimetry (DSC) ranged from 154.2 to 200.8 degrees C. The 5% weight lost temperature (T-5%) of PENAPs were 418.9-447.7 degrees C. The tensile and DMA test indicated that PENAPs possessed excellent mechanical properties with tensile strength more than 92.8 MPa and storage modulus more than 1.0 GPa at about 150 degrees C. The melt flowability was measured by rheology properties testing ranging from 80 to 1639 GPa at 290 degrees C and under shear frequency 100 Hz, which indicated the copolymers had good flowability and thermal stability. Additionally, PENAPs could be dissolved in many solutions, which meant PENAPs had good solubility and can be processed by solution method.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 143-24-8 is helpful to your research. Product Details of 143-24-8.