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Effect of polymerization conditions on o-phenylenediamine and o-phenetidine oxidative copolymers
Huang, MR; Li, XG; Duan, W(段伟); Li, XG (reprint author), Tongji Univ, Coll Mat Sci & Engn, Inst Mat Chem, State Key Lab Concrete Mat Res, 1239 Siping Rd, Shanghai 200092, Peoples R China
2005
Source PublicationPOLYMER INTERNATIONAL
ISSN0959-8103
Volume54Issue:1Pages:70
AbstractA series of new o-phenylenediamine (OPD)/o-phenetidine (PHT) copolymers with partly phenazine-like structures has been successfully synthesized at three polymerization temperatures by chemically oxidative polymerization in four different polymerization media. The molecular structures and properties of the resulting OPD/PHT polymers were investigated by IR, UV-vis and high-resolution 1 H NMR spectroscopies, and DSC, in order to ascertain the effect of reaction temperature, comonomer ratio and acid medium. The copolymerization mechanism of OPD with PHT monomers has been proposed. It is found that the statistical OPD/PHT copolymer obtained at a temperature of 118 degreesC has a higher degree of polymerization than that obtained at 12-17 degreesC. The OPD content in the copolymers calculated from NMR spectroscopic analysis is higher than that in the feed OPD content, whereas the OPD content calculated from element analysis is slightly lower than the feed OPD content. It can be predicted that denitrogenation takes place in the OPD units during the polymerization process at OPD/PHT molar ratios of 90/10 and 100/0. These OPD/PHT copolymers exhibit a much better solubility than the OPD homopolymer, hence suggesting an incorporation of PHT units into the phenazine structure of the homopolymer. The thermal behavior of the copolymers was also studied. (C) 2004 Society of Chemical Industry.
KeywordO-phenylenediamine/o-phenetidine Copolymer Oxidative Copolymerization Oxidative Polymer Solubility Phenazine Structure
Subject AreaChemistry
Indexed Bysci
Language英语
Funding Project应物所项目组
WOS IDWOS:000226036800008
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8046
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorLi, XG (reprint author), Tongji Univ, Coll Mat Sci & Engn, Inst Mat Chem, State Key Lab Concrete Mat Res, 1239 Siping Rd, Shanghai 200092, Peoples R China
Recommended Citation
GB/T 7714
Huang, MR,Li, XG,Duan, W,et al. Effect of polymerization conditions on o-phenylenediamine and o-phenetidine oxidative copolymers[J]. POLYMER INTERNATIONAL,2005,54(1):70.
APA Huang, MR,Li, XG,Duan, W,&Li, XG .(2005).Effect of polymerization conditions on o-phenylenediamine and o-phenetidine oxidative copolymers.POLYMER INTERNATIONAL,54(1),70.
MLA Huang, MR,et al."Effect of polymerization conditions on o-phenylenediamine and o-phenetidine oxidative copolymers".POLYMER INTERNATIONAL 54.1(2005):70.
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