Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 5294-61-1, Name is N-(2,6-Dimethylphenyl)-2-(piperazin-1-yl)acetamide, molecular formula is C14H21N3O, belongs to piperazines compound. In a document, author is Ding, Hao, introduce the new discover, Recommanded Product: N-(2,6-Dimethylphenyl)-2-(piperazin-1-yl)acetamide.
Transformation of Commodity Poly(hydroxyether of bisphenol A) into Vitrimers via Post Crosslinking with Hindered Urea Bonds
In this contribution, we reported the preparation of vitrimers by using commodity thermoplasticsviapost crosslinking with hindered urea bonds (HUBs). First, three hindered urea diisocyanates (HUDIs) were synthesizedviathe reactions ofN,N’-di-tert-butylethylenediamine,N,N’-diethylethylenediamine, and piperazine with isophorone diisocyanate (IPDI). Thereafter, these HUDIs were used as the crosslinking agents to crosslink poly(hydroxyether of bisphenol A) (PH), a commodity thermoplastics. Fourier transform infrared (FTIR) spectroscopy and dynamic mechanical thermal analyses (DMTA) indicated that the PH thermosets were successfully obtained. It was found that the thermosets displayed the behavior of vitrimers. The PH thermosets can be reprocessed at elevated temperature without using catalyst and the mechanical strengths of vitrimers were recovered as high as 95%. The reprocessing properties are attributable to dynamic exchange reaction of hindered urea bonds, contingent on types of hindered urea bonds.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 5294-61-1. Recommanded Product: N-(2,6-Dimethylphenyl)-2-(piperazin-1-yl)acetamide.
Reference:
Piperazine – Wikipedia,
,Piperazines – an overview | ScienceDirect Topics