Synthesis of Thermal Degradable Poly(alkoxyamine) through a Novel Nitroxide Radical Coupling Step Growth Polymerization Mechanism
Synthesis of Thermal Degradable Poly(alkoxyamine) through a Novel Nitroxide Radical Coupling Step Growth Polymerization Mechanism
复制标题
通过新型硝基氧自由基偶联一步生长聚合机制合成热降解聚烷氧基胺
DOI:
10.1021/ma501613x
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发表时间:
2014-11
期刊:
影响因子:
5.5
通讯作者:
Wang, Guowei
中科院分区:
文献类型:
--
作者:
Wang, Xuepu;Wang, Guowei
The thermal degradable poly(alkoxyamine) was synthesized through a novel nitroxide radical coupling step growth polymerization (NRC-SGP) mechanism. The monomers of 1,4-phenylene bis(2-bromo-2-methylpropanoate) (monomer 1) and 1,4-phenylene bis(2-bromopropanoate) (monomer 1′) with two bromide groups and 1,6-di(4-(2,2,6,6-tetramethylpiperidine-1-oxyl))-hexa-2,4-diyne (monomer 2) with two nitroxide radicals were first designed and synthesized. Then the NRC-SGP mechanism was investigated in detail by optimizing the factors such as polymerization time, temperature, solvents, catalysts, ligand, monomer concentration, and structures connected to halogen groups. The results showed that the termination by disproportionation was the major side reaction in the NRC-SGP mechanism, and the lower temperature (25 °C) would favor an important contribution. The proper combination of all factors could lead to an ideal NRC-SGP procedure. Finally, the thermal stability of formed poly(alkoxyamine) was monitored by TG, DSC and ...
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影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
10.1002/chin.200147279
发表时间:
2001-11
期刊:
ChemInform
影响因子:
--
作者:
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通讯作者:
Krzysztof Matyjaszewski;J. Xia
DOI:
10.1002/pola.27061
发表时间:
2014-03
期刊:
Journal of Polymer Science Part A
影响因子:
--
作者:
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通讯作者:
Junjie Li;Qi Wang