Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles

Huan Chang; Mei Shi; Ya-nan Sun; Jin-qiang Jiang

doi:10.1007/s10118-015-1657-4

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Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles

PAPER | Updated：2021-06-21

- Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles
- Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles
- Chinese Journal of Polymer Science 2015年33卷第8期页码：1086-1095
- Affiliations：
  
  a.Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
  b.Shandong Vocational College of Industry, Zibo 256414, China
- Author bio：
  
  **Jin-qiang Jiang (江金强), E-mail: jiangjq@snnu.edu.cn
- Funds：
  
  National Natural Science Foundation of China(21374056);the Natural Science Basic Research Plan in Shaanxi Province of China(NSBRP-SPC 2014JM2051);Fundamental Research Funds for the Central Universities(GK201302045);Shaanxi Innovative Research Team for Key Science and Technology(2012KCT-21;2013KCT-17);One Hundred Plan of Shaanxi Province
- DOI：10.1007/s10118-015-1657-4
  中图分类号：
- 收稿：2014-11-07，
  
  修回：2014-11-30，
  
  录用：2014-12-21，
  
  纸质出版：2015-08
- Accepted：
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Huan Chang, Mei Shi, Ya-nan Sun, 等. Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles[J]. Chinese Journal of Polymer Science, 2015,33(8):1086-1095.

Huan Chang, Mei Shi, Ya-nan Sun, et al. Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles[J]. Chinese Journal of Polymer Science, 2015, 33(8): 1086-1095.
Huan Chang, Mei Shi, Ya-nan Sun, 等. Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles[J]. Chinese Journal of Polymer Science, 2015,33(8):1086-1095. DOI： 10.1007/s10118-015-1657-4.

Huan Chang, Mei Shi, Ya-nan Sun, et al. Photo-Dimerization Characteristics of Coumarin Pendants within Amphiphilic Random Copolymer Micelles[J]. Chinese Journal of Polymer Science, 2015, 33(8): 1086-1095. DOI： 10.1007/s10118-015-1657-4.

摘要

Abstract

The photo-dimerization characteristics of coumarin pendants within amphiphilic random copolymer micelles in aqueous solution was comprehensively investigated using various selected wavelength light in the UV-Vis-NIR region. The time-dependent photo-dimerization degree (PD) changes in the photo-dimerization experiments showed saturating behaviors with intensity-independent of PDmax values at 28%

44%

92%

85%

36%

35%

32% and 31% for 254

288

320

360

400

500

650 and 900 nm irradiations

respectively. The irradiation experiments at 254 and 288 nm announced the occurring of an asymmetric equilibrium of photo-dimerization and photo-cleavage at the used conditions. Both the alternative irradiation cycles of 360 and 254 nm

650 and 254 nm showed a partially

but evidently reversible photo-dimerization tendency.

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