| 引用本文: | 王攀,刘国龙,王泽中.支化聚吡咯甲烷的制备与光学性能[J].材料科学与工艺,2022,30(1):61-68.DOI:10.11951/j.issn.1005-0299.20210167. |
| WANG Pan,LIU Guolong,WANG Zezhong.Preparation and optical properties of branched polypyrrole methanes[J].Materials Science and Technology,2022,30(1):61-68.DOI:10.11951/j.issn.1005-0299.20210167. |
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| 摘要: |
| 聚吡咯的溶解性较差,为其光学性能研究带来了诸多困难。将吡咯类和苯甲醛类单体通过缩聚反应可制备出具有较好溶解性的聚吡咯甲烷发光材料。以吡咯和对二甲氨基苯甲醛为原料,对苯二甲醛为支化单体,采用溶液共缩聚法制备了不同原料比的支化聚吡咯甲烷,并对其光学性能进行了研究。结果表明,支化聚吡咯甲烷的热稳定性较好,高于300 ℃后出现明显的降解；在275、319和370 nm附近的紫外光的激发下,支化聚吡咯甲烷能够产生约为430 nm的可见光,为蓝紫色的发光材料,其中支化单体的用量对可溶的支化聚吡咯甲烷的发光行为影响不大。支化聚吡咯甲烷在高分子发光二极管等领域有着潜在的应用价值。 |
| 关键词: 杂环链聚合物 支化高分子 聚吡咯甲烷 荧光 光学性能 |
| DOI：10.11951/j.issn.1005-0299.20210167 |
| 分类号:O633.5 |
| 文献标识码:A |
| 基金项目:安徽省高校自然科学研究项目(KJ2020B18)；滁州学院大学生创新创业训练计划项目(2021CXXL086). |
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| Preparation and optical properties of branched polypyrrole methanes |
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WANG Pan, LIU Guolong, WANG Zezhong
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(School of Material Science and Chemical Engineering, Chuzhou University, Chuzhou 239000, China)
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| Abstract: |
| The poor solubility of polypyrrole brings many difficulties to the study of its optical properties. The polypyrrole methane luminescent materials with good solubility can be prepared via polycondensation of pyrrole and benzaldehyde monomers. A series of branched polypyrrole methanes were fabricated by solution copolycondensation using pyrrole and 4-dimethylaminobenzaldehyde as raw materials, terephthaldicarboxaldehyde as branched monomer, and their optical performances were investigated in detail. Results indicate that the branched polypyrrole methanes have good thermal stability, and significant degradation occurs when the temperature is higher than 300 ℃. Under the excitation of ultraviolet light near 275, 319, and 370 nm, the branched polypyrrole methanes can produce visible light of about 430 nm, which are blue-purple luminescent materials. The amount of branched monomer has little effect on the luminescent behavior of the soluble branched polypyrrole methanes. The branched polypyrrole methanes have potential application in fields such as polymer light-emitting diodes. |
| Key words: heterocyclic chain polymer branched polymer polypyrrole methanes fluorescence optical performance |
