Electric Literature of 17057-04-4, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.17057-04-4, Name is 4-(2,5-Dioxo-2,5-dihydro-pyrrol-1-yl)-benzoicacid, molecular formula is C11H7NO4. In a article£¬once mentioned of 17057-04-4
Polyamide thermosets
The present invention provides (1) curable polyamide monomers represented by the formula: R1 -A1 -B1 -A2 -B2 -A3 -R2 where R1 and R2 are radicals selected from the group consisting of maleimide, substituted maleimide, nadimide, substituted nadimide, ethynyl, and (C(R3)2)2 where R3 is hydrogen with the proviso that the two carbon atoms of (C(R3)2)2 are bound on the aromatic ring of A1 or A3 to adjacent carbon atoms, A1 and A3 are 1,4-phenylene and the same where said group contains one or more substituents selected from the group consisting of halo, e.g., fluoro, chloro, bromo, or iodo, nitro, lower alkyl, e.g., methyl, ethyl, and propyl, lower alkoxy, e.g., methoxy, ethoxy, or propoxy, and fluoroalkyl or fluoroalkoxy, e.g., trifluoromethyl, pentafluoroethyl and the like, A2 is selected from the group consisting of 1,4-phenylene, 4,4′-biphenyl, 2,6-naphthylene and the same where said groups contain one or more substitutents selected from the group consisting of halo, e.g., fluoro, chloro, bromo, or iodo, nitro, lower alkyl, e.g., methyl, ethyl, and propyl, lower alkoxy, e.g., methoxy, ethoxy, or propoxy, and fluoroalkyl or fluoroalkoxy, e.g., trifluoromethyl, pentafluoroethyl and the like, and B1 and B2 are selected from the group consisting of –C(O)–N(H)– and –N(H)–C(O)–, (2) thermoset polyamide compositions comprised of cured segments derived from monomers represented by the formula: R1 -A1 -B1 -A2 -B2 -A3 -R2 as described above, and curable blends of at least two of the polyamide monomers and (4) processes of preparing the curable polyamide monomers.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 17057-04-4
Reference£º
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem