Electronic Transition Process of Fluorescence Appearing in Various Organic Polymers
-
- Nishikawa Seiya
- Department of Electrical Engineering and Bioscience, Waseda University
-
- Tonoi Masashi
- Department of Electrical Engineering and Bioscience, Waseda University
-
- Yoshikawa Takeshi
- Department of Chemistry and Biochemistry, Waseda University
-
- Hirai Naoshi
- Research Institute for Materials Science and Technology, Waseda University
-
- Nakai Hiromi
- Department of Chemistry and Biochemistry, Waseda University
-
- Ohki Yoshimichi
- Department of Electrical Engineering and Bioscience, Waseda University Research Institute for Materials Science and Technology, Waseda University
Bibliographic Information
- Other Title
-
- 多くの有機高分子に現れる蛍光の電子遷移過程
- オオク ノ ユウキ コウブンシ ニ アラワレル ケイコウ ノ デンシ センイ カテイ
Search this article
Abstract
Low density polyethylene (LDPE) and polypropylene (PP) exhibit a photoluminescence (PL) band, which emits photons with an energy of around 4.3 eV when excited by photons with energies around 6.4 eV. The origin of this PL band has been assigned to α, β-unsaturated carbonyl. In this paper, the appearance of PL was examined for four kinds of polyolefin and four kinds of biodegradable polymers. As a result, it has become clear that all the polymers show a PL band with a PL excitation spectrum and a PL spectrum similar to those of the above-mentioned PL band in LDPE and PP. The decay profiles observed for these PL bands indicate that they are fluorescence. Furthermore, the intensity of the PL becomes weak for all the four polyolefin samples and the polylatic acid sample if ultraviolet photons were irradiated to the sample. Quantum chemical calculations carried out by assuming a model of α, β-unsaturated carbonyl have revealed that the PL originates in the π* to π transition of electrons in the carbon-carbon double bond.
Journal
-
- IEEJ Transactions on Fundamentals and Materials
-
IEEJ Transactions on Fundamentals and Materials 136 (4), 205-211, 2016
The Institute of Electrical Engineers of Japan
- Tweet
Keywords
Details
-
- CRID
- 1390282679575763456
-
- NII Article ID
- 130005141603
-
- NII Book ID
- AN10136312
-
- ISSN
- 13475533
- 03854205
-
- NDL BIB ID
- 027298387
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed