Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalyst
A series of p-phenylenediamine (pPD), 2,5−dimethyl-p-phenylenediamine (dMe-pPD) and 2,3,5,6−tetramethyl-p-phenylenediamine (tMe-pPD) polymers were successfully synthesized in different polymerization conditions, using ammonium persulfate as an oxidant and aluminium triflate (Al(OTf)3) as a co-cataly...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-01-01
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| Series: | Cogent Engineering |
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| Online Access: | http://dx.doi.org/10.1080/23311916.2018.1499701 |
| _version_ | 1797706575819833344 |
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| author | Ismael Amer Sonja Brandt |
| author_facet | Ismael Amer Sonja Brandt |
| author_sort | Ismael Amer |
| collection | DOAJ |
| description | A series of p-phenylenediamine (pPD), 2,5−dimethyl-p-phenylenediamine (dMe-pPD) and 2,3,5,6−tetramethyl-p-phenylenediamine (tMe-pPD) polymers were successfully synthesized in different polymerization conditions, using ammonium persulfate as an oxidant and aluminium triflate (Al(OTf)3) as a co-catalyst. The poly(p-phenylenediamine) (P(pPD)), poly(2,5−dimethyl-p-phenylenediamine) (P(dMe-pPD)) and poly(2,3,5,6−tetramethyl-p-phenylenediamine) (P(tMe-pPD)) polymers obtained were characterized by UV–vis, FT-IR, 1H and 13C NMR, WAXD, DSC and TGA. The addition of Al(OTf)3 to the polymerization reaction improved the polymerization yield of some polymers. In most solvents, significantly improved solubility of P(dMe-pPD) and P(Me-pPD) polymers was obtained compared to the P(pPD) polymers as a result of methyl side groups effects. The yield, structure and solubility of the polymers were shown to depend to a large extent on the polymerization conditions. The polymers displayed crystallization and melting transitions on DSC. The P(pPD), P(dMe-pPD) and P(tMe-pPD) polymers were found to have good thermal stability, as indicated by TGA results, and to decompose above 400°C in nitrogen. |
| first_indexed | 2024-03-12T05:53:21Z |
| format | Article |
| id | doaj.art-48d511b4d2de4453bad7d513e07c318c |
| institution | Directory Open Access Journal |
| issn | 2331-1916 |
| language | English |
| last_indexed | 2024-03-12T05:53:21Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Engineering |
| spelling | doaj.art-48d511b4d2de4453bad7d513e07c318c2023-09-03T04:50:37ZengTaylor & Francis GroupCogent Engineering2331-19162018-01-015110.1080/23311916.2018.14997011499701Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalystIsmael Amer0Sonja Brandt1College of Science, Engineering and Technology, University of South AfricaCollege of Science, Engineering and Technology, University of South AfricaA series of p-phenylenediamine (pPD), 2,5−dimethyl-p-phenylenediamine (dMe-pPD) and 2,3,5,6−tetramethyl-p-phenylenediamine (tMe-pPD) polymers were successfully synthesized in different polymerization conditions, using ammonium persulfate as an oxidant and aluminium triflate (Al(OTf)3) as a co-catalyst. The poly(p-phenylenediamine) (P(pPD)), poly(2,5−dimethyl-p-phenylenediamine) (P(dMe-pPD)) and poly(2,3,5,6−tetramethyl-p-phenylenediamine) (P(tMe-pPD)) polymers obtained were characterized by UV–vis, FT-IR, 1H and 13C NMR, WAXD, DSC and TGA. The addition of Al(OTf)3 to the polymerization reaction improved the polymerization yield of some polymers. In most solvents, significantly improved solubility of P(dMe-pPD) and P(Me-pPD) polymers was obtained compared to the P(pPD) polymers as a result of methyl side groups effects. The yield, structure and solubility of the polymers were shown to depend to a large extent on the polymerization conditions. The polymers displayed crystallization and melting transitions on DSC. The P(pPD), P(dMe-pPD) and P(tMe-pPD) polymers were found to have good thermal stability, as indicated by TGA results, and to decompose above 400°C in nitrogen.http://dx.doi.org/10.1080/23311916.2018.1499701aluminium triflatenmroxidative polymerizationp-phenylenediaminetga |
| spellingShingle | Ismael Amer Sonja Brandt Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalyst Cogent Engineering aluminium triflate nmr oxidative polymerization p-phenylenediamine tga |
| title | Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalyst |
| title_full | Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalyst |
| title_fullStr | Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalyst |
| title_full_unstemmed | Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalyst |
| title_short | Synthesis and characterization of Poly(p-phenylenediamine) and its derivatives using aluminium triflate as a co-catalyst |
| title_sort | synthesis and characterization of poly p phenylenediamine and its derivatives using aluminium triflate as a co catalyst |
| topic | aluminium triflate nmr oxidative polymerization p-phenylenediamine tga |
| url | http://dx.doi.org/10.1080/23311916.2018.1499701 |
| work_keys_str_mv | AT ismaelamer synthesisandcharacterizationofpolypphenylenediamineanditsderivativesusingaluminiumtriflateasacocatalyst AT sonjabrandt synthesisandcharacterizationofpolypphenylenediamineanditsderivativesusingaluminiumtriflateasacocatalyst |