| Modification of PPTA by Adding N,N''''-piperazineydiamme |
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| 引用本文： | 钦维民,顾润南,黄象安,肖若鉴. Modification of PPTA by Adding N,N''''-piperazineydiamme[J]. 东华大学学报(英文版), 2001, 0(3) |
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| 作者姓名： | 钦维民 顾润南 黄象安 肖若鉴 |
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| 作者单位： | Qin Weiming Gu RunnanInstitute of Chemistry and Chemical Engineering，Dong Hua University，Shanghai，200051Huang Xiang'anCollege of Materials Science and Engineering，Dong Hua University，Shanghai，200051Xiao RuojianInstitute of Chemistry and Chemical Engineering，Dong Hua University，Shanghai，200051 |
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| 摘 要： | High viscous PPTA copolymer is prepared by low temperature solution copolycondensation of terephth-aloylchloride, p-phenylenediamine and p, p'-diamino-phenylpiperazine in the NMP-CaCl2 solvent system. The inherent viscosity of all copolymers is more than 5. If more quantity of 3rd monomer is introduced into the macromolecular chain, the inherent viscosity becomes higher. The copolymer's ash content is less than 1000 μg/g. The heat durability of copolymer is close to that of PPTA, and its dissolubility is superior to that of PPTA.
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Modification of PPTA by Adding N,N''''-piperazineydiamme |
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| Qin Weiming Gu RunnanInstitute of Chemistry and Chemical Engineering,Dong Hua University,Shanghai,Huang Xiang'anCollege of Materials Science and Engineering,Dong Hua University,Shanghai,Xiao RuojianInstitute of Chemistry and Chemical Engineering,Dong Hua University,Shanghai. Modification of PPTA by Adding N,N''''-piperazineydiamme[J]. Journal of Donghua University, 2001, 0(3) |
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| Authors: | Qin Weiming Gu RunnanInstitute of Chemistry Chemical Engineering Dong Hua University Shanghai Huang Xiang'anCollege of Materials Science Engineering Dong Hua University Shanghai Xiao RuojianInstitute of Chemistry Chemical Engineering Dong Hua University Shanghai |
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| Affiliation: | Qin Weiming Gu RunnanInstitute of Chemistry and Chemical Engineering,Dong Hua University,Shanghai,200051Huang Xiang'anCollege of Materials Science and Engineering,Dong Hua University,Shanghai,200051Xiao RuojianInstitute of Chemistry and Chemical Engineering,Dong Hua University,Shanghai,200051 |
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| Abstract: | |
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| Keywords: | poly-p-phenylene terephthalamide dissolubility heat-resistant p p'-diaminophenylpiperazine copolycond-ensation. |
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