d****n
发帖数: 237 | | y****u
发帖数: 50 | 2 In ATRP, the concentraion of free radicals is kept very low
so as to minimize chain transfer and termination.
Most polymer chains are dormant with a halogen atom as endgroup.
A typical ATRP system consists of a monomer, initiator (usually alkyl halide),
catalyst (transition-Metal complexes), and ligand.
The added amide might react with other component instead of the free radical.
Quenching is used in living anionic polymerization to
prepare end-functionalized polymers,
but in ATRP, the halogen c
【在 d****n 的大作中提到】
: 有这样的反应吗？R是饱和的惰性的基团。
| t***m
发帖数: 114 | 3 ATRP的反应末端有卤素原子，可能会发生
R-X + NH2-CO-R ->R-NH-CO-R {对小分子反应，可以，所以对大分子理论上应该可以}
不过个人认为，也可能是和CO边上的R上的H反应
所以R是什么很关键
【在 d****n 的大作中提到】
: 有这样的反应吗？R是饱和的惰性的基团。
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