Ring-opening polymerization of macrocyclic(aromatic disulfide) oligomer derived from 4,4′-oxybis(benzenethiol)
作者： K. Chen , Z.A. Liang , Y.Z. Meng , A.S. Hay
DOI: 10.1016/J.POLYMER.2004.01.002
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摘要: Abstract Ring-opening polymerization of macrocyclic(aromatic disulfide) oligomer derived from 4,4′-oxybis(benzenethiol) was studied. reactions were carried out in nitrogen and oxygen atmosphere, respectively. Oxidation reaction cross-linking took place atmosphere. The melt copolymerization between cyclic 1 elemental sulfur studied using DSC, TGA techniques. With increasing the contents polymer, Tg values, 5% weight loss temperatures decreased. When ratio to reached 5, polymer appeared as a rubber with 23.0 °C temperature 269.4 °C. A series poly(thiol aromatic)s prepared dibromo aromatic compounds diphenyl ether at 260 can be bis(4-bromophenyl) ether, 4,4′-dibromobiphenyl, 1,4-dibromobenzene. 4,4′-Dibromobiphenyl gave aromatic) 122.2 Tm 221.3 by reacting 1.
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