Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide Polylactides
Two types of naphthalimide derivatives were synthesized by introducing a carbazole group and an n-butyl, respectively, into the naphthalimide system. The electron-donating ability of two kinds of derivatives was investigated by the electrochemical method. These two types of derivatives were used as...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/4/790 |
| _version_ | 1797571681314668544 |
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| author | Zhiwei Li Xingyuan Zhang |
| author_facet | Zhiwei Li Xingyuan Zhang |
| author_sort | Zhiwei Li |
| collection | DOAJ |
| description | Two types of naphthalimide derivatives were synthesized by introducing a carbazole group and an n-butyl, respectively, into the naphthalimide system. The electron-donating ability of two kinds of derivatives was investigated by the electrochemical method. These two types of derivatives were used as initiators for the polymerization of <span style="font-variant: small-caps;">d</span> and <span style="font-variant: small-caps;">l</span>-lactide polymerization. Here, the emission and UV-vis absorption serve as the main focus. Compared with solely donor-initiated polylactide (PLA), the PLA with a donor-acceptor structure has a more efficient phosphorescence emission, of which the longest phosphorescence lifetime is up to 407 ms. The experimental results reveal the existence of charge-transfer states in the donor-acceptor-ended polymer. Due to the role of charge-transfer states, a red phosphorescent polymer was developed. Theoretically, these desirable advantages render synthesized PLAs a potential candidate for bioimaging and anti-counterfeiting. |
| first_indexed | 2024-03-10T20:43:57Z |
| format | Article |
| id | doaj.art-7226bf6773d44c37ae53d3238d75bb8d |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T20:43:57Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-7226bf6773d44c37ae53d3238d75bb8d2023-11-19T20:28:20ZengMDPI AGPolymers2073-43602020-04-0112479010.3390/polym12040790Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide PolylactidesZhiwei Li0Xingyuan Zhang1CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, ChinaCAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, ChinaTwo types of naphthalimide derivatives were synthesized by introducing a carbazole group and an n-butyl, respectively, into the naphthalimide system. The electron-donating ability of two kinds of derivatives was investigated by the electrochemical method. These two types of derivatives were used as initiators for the polymerization of <span style="font-variant: small-caps;">d</span> and <span style="font-variant: small-caps;">l</span>-lactide polymerization. Here, the emission and UV-vis absorption serve as the main focus. Compared with solely donor-initiated polylactide (PLA), the PLA with a donor-acceptor structure has a more efficient phosphorescence emission, of which the longest phosphorescence lifetime is up to 407 ms. The experimental results reveal the existence of charge-transfer states in the donor-acceptor-ended polymer. Due to the role of charge-transfer states, a red phosphorescent polymer was developed. Theoretically, these desirable advantages render synthesized PLAs a potential candidate for bioimaging and anti-counterfeiting.https://www.mdpi.com/2073-4360/12/4/790polymer long-lived room temperature phosphorescence (RTP)donor-acceptorintersystem crossingcharge-transfer statered RTP |
| spellingShingle | Zhiwei Li Xingyuan Zhang Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide Polylactides Polymers polymer long-lived room temperature phosphorescence (RTP) donor-acceptor intersystem crossing charge-transfer state red RTP |
| title | Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide Polylactides |
| title_full | Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide Polylactides |
| title_fullStr | Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide Polylactides |
| title_full_unstemmed | Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide Polylactides |
| title_short | Research on Long-Lived Room-Temperature Phosphorescence of Carbazole-Naphthalimide Polylactides |
| title_sort | research on long lived room temperature phosphorescence of carbazole naphthalimide polylactides |
| topic | polymer long-lived room temperature phosphorescence (RTP) donor-acceptor intersystem crossing charge-transfer state red RTP |
| url | https://www.mdpi.com/2073-4360/12/4/790 |
| work_keys_str_mv | AT zhiweili researchonlonglivedroomtemperaturephosphorescenceofcarbazolenaphthalimidepolylactides AT xingyuanzhang researchonlonglivedroomtemperaturephosphorescenceofcarbazolenaphthalimidepolylactides |