With the Cl atom at the chain end, PMMA obtained could be used as macroinitiator to proceed chain-extension reaction with MMA and block copolymerization reaction with styrene in the presence of CuCl/bipy catalyst via a conventional ATRP process.
Other forms of addition reactions include: catalyzed addition reactions, such as the self-addition of alkenes (catalyzed by acids) or the hydrogenation of alkenes, aldehydes, and ketones (catalyzed by metals); addition reactions in which cyclic compounds are formed; and addition reactions that proceed by chain mechanisms.
Combustion processes proceed with chain reactions and the reaction is highly exothermic.
The resulting polyacrylonitrile was successfully used as the macroinitiator to proceed the chain extension polymerization in [mim][AT].
The polymers obtained were end-functionalized by chlorine atom, and they were used as macroinitiators to proceed the chain extension polymerization in the presence of FeCl2/IMA catalyst system via a conventional ATRP process.
At acidic pH, hydrolysis was shown to proceed by chain-end scission whereas in alkaline medium, lactoyl lactate was split off.
From SEC study, it can be indicated that the polymerization proceeded through chain reaction, not through a typical polycombination reaction.
Dilute solutions (10−8 to 10−6 mol L−1) of these polymers revealed excimer emission due to the intramolecular cyclization, proceeding via chain end interaction.
Recent years have seen dramatic development in understanding of polycondensations that proceed only by chain-growth (chain-growth polycondensation).
Autoxidation has been found to proceed by a chain reaction; that is, a reaction consisting of a series of successive steps occurring in repetitive cycles, in each of which intermediate products called chain carriers are regenerated.
If Rosenstein refused, Trump would have to fire him and then proceed down the chain of command at the Department of Justice until he found someone willing to carry out the order.
