Expedient Synthesis and Ring-Opening Metathesis Polymerization of Pyridinonorbornenes.
Expedient Synthesis and Ring-Opening Metathesis Polymerization of Pyridinonorbornenes.
复制标题
DOI:
10.1039/d2py00857b
复制
发表时间:
2022-10-21
影响因子:
4.6
通讯作者:
Michaudel, Quentin
中科院分区:
文献类型:
--
作者:
Hancock, Sarah N.;Yuntawattana, Nattawut;Valdez, Sara M.;Michaudel, Quentin
Pyridine-containing polymers are promising materials for a variety of applications from the capture of contaminants to the self-assembly of block copolymers. However, the innate Lewis basicity of the pyridine motif often hampers living polymerization catalyzed by transition-metal complexes. Herein, we report the expedient synthesis of pyridinonorbornene monomers via a [4+2] cycloaddition between 2,3-pyridynes and cyclopentadiene. Well-controlled ring-opening metathesis polymerization was enabled by careful structural design of the monomer. Polypyridinonorbornenes exhibited high Tg and Td, a promising feature for high-temperature applications. Investigation of the polymerization kinetics and of the reactivity of the chain ends shed light on the influence of nitrogen coordination on the chain-growth mechanism. Pyridinonorbornenes, a unique family of ROMP monomers, was synthesized via the intermediacy of 2,3-pyridynes. Modulation of the steric hindrance about the nitrogen allowed a living ROMP process and the production of polymers with high Tg and Td.
登录
查看更多内容
影响因子:
5.5
作者:
Medina JM;Ko JH;Maynard HD;Garg NK
通讯作者:
Garg NK
影响因子:
--
作者:
ELSAAFIN, IFAF;FEAST, WJ
通讯作者:
FEAST, WJ
影响因子:
4.3
作者:
Hintermann, Lukas;Dang, Tuan Thanh;Naumov, Pance
通讯作者:
Naumov, Pance
影响因子:
2.1
作者:
Medina, Jose M.;Jackl, Moritz K.;Garg, Neil K.
通讯作者:
Garg, Neil K.
影响因子:
8
作者:
Anthony SM;Wonilowicz LG;McVeigh MS;Garg NK
通讯作者:
Garg NK