Overall studies shows that color of the dye shifted from red to reddish blue depending on (chromophore) diazo component while effect of diamine
bridge also effect on dye exhaustion and dye fixation as shown in the given Table-2 and 3.
Meanwhile, these results indicate that carboxylic acid groups were formed on the opened MWNTs, and the weight percentage of the hexamethylene diamine
grafted on the MWNTs was approximately 2 wt% of the total weight.
Suppliers (trading companies) of Dimethyl thio-toluene diamine
(including contact details)
In the case of nylon 6/12, the diamine
remains the same but the diacid that is used contains 12 carbons.
The relatively small-sized cells obtained with diamine
(TDA and EDA) implies that gelling reactions are catalyzed by the initiator amine during the foaming process as urethane forming reactions are catalyzed by amine.
The state-of-the-art plant will employ INVISTA's latest advances in its proprietary butadiene-based technology to produce hexamethylene diamine
(HMD) and adiponitrile (ADN), along with a variety of specialty chemicals and nylon 6,6 polymer.
Other minor uses of VCM include manufacture of ethylene diamine
for the production of resins and manufacture of chlorinated solvents.
The polyamide contains 60 to 100 mole% terephthalic diamine
, up to 40 mole% 1,9-nonamethylenediamine or 2-methyl-1,8-octamethylenediamine.
These include 1, 4-butanediol, Caytur 21 and 31 delayed-action amine curatives, HQEE diol chain extender, MBCA, Ethacure 300 aromatic diamine
alternative to MBCA, erhoxykted rrimethylopropane, and three Vibracure diols.
It has been developed for use in ACM and AEM elastomers with acidic pending groups, and it activates the reaction between acidic groups and diamine
In this article, a heterocyclic diamine
2-(4-aminophenyl)-5-aminobenzimidazole (PABZ) which has a heat resistant benzimidazole chemical structure was introduced to copolymerize with ODA and PMDA in an attempt to modify traditional PMDA/ODA PI fibers.
The polyamide is obtained by polycondensation of a diamine
with a dicarboxylic acid.