Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, 6292-59-7, Name is 4-(tert-Butyl)benzenesulfonamide, SMILES is C1=CC(=CC=C1C(C)(C)C)[S](N)(=O)=O, belongs to amides-buliding-blocks compound. In a document, author is Wang, Da-Peng, introduce the new discover, Quality Control of 4-(tert-Butyl)benzenesulfonamide.
A simple non-isocyanate route synthesizing crystallizable aliphatic segmented thermoplastic poly(ether urethane)s (PEIUs) and elastomers with high melting temperature (T-m) and good mechanical properties is described. Three poly(ethylene hexanediurethane) prepolymers (PrePEHDUs) were prepared through the self-transurethane polycondensation of bis(hydroxyethyl) hexanediurethane. Melt polycondensation of PrePEHDUs, poly(ethylene glycol)1500, and bis(hydroxyethyl) isophoronediurethane was conducted at 170 degrees C under a reduced pressure of 399 Pa, and a series of segmented PEIUs containing irregular units were synthesized. The PEIUs were characterized by gel permeation chromatography, Fourier transform infrared spectroscopy, (1)proton nuclear magnetic resonance, (13)carbon nuclear magnetic resonance (C-NMR), 2D C-13-H-1 heteronuclear single quantum coherence (HSQC) NMR, distortionless enhancement by polarization transfer (DEPT)-135 C-13-NMR, differential scanning calorimetry, thermogravimetric analysis, wide-angle X-ray diffraction, atomic force microscopy, and tensile tests. The PEIUs exhibited a number-average molecular weight up to 20700 g/mol, T-m up to 141.1 degrees C, initial decomposition temperature at over 243.1 degrees C, and tensile strength up to 49.44 MPa. By tuning the length and amount of crystallizable segments, crystallizable PEIU thermoplastic elastomers were prepared. They exhibited tensile strength up to 20.85 MPa, elongation at break above 125.43%, and resilience above 65.69%.
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 6292-59-7 is helpful to your research. Quality Control of 4-(tert-Butyl)benzenesulfonamide.
Reference:
Amide – Wikipedia,
,Amide – an overview | ScienceDirect Topics