Cyclic side-chain phenylazo naphthalene polymers: enhanced fluorescence emission and surface relief grating formation

Hao Zhang; Nianchen Zhou; Xing Zhu; Xinrong Chen; Zhengbiao Zhang; Wei Zhang; Jian Zhu; Zhijun Hu; Xiulin Zhu

doi:10.1002/marc.201200415

Cyclic side-chain phenylazo naphthalene polymers: enhanced fluorescence emission and surface relief grating formation

Macromol Rapid Commun. 2012 Nov 14;33(21):1845-51. doi: 10.1002/marc.201200415. Epub 2012 Sep 11.

Authors

Hao Zhang¹, Nianchen Zhou, Xing Zhu, Xinrong Chen, Zhengbiao Zhang, Wei Zhang, Jian Zhu, Zhijun Hu, Xiulin Zhu

Affiliation

¹ Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China.

PMID: 22965741
DOI: 10.1002/marc.201200415

Abstract

Well-defined cyclic-polymers (cyclic-PAzoMMAs), bearing side-chain phenylazo naphthalene chromophore, were successfully synthesized by the combination of atom transfer radical polymerization (ATRP) and copper(I)-catalyzed azide/alkyne cycloaddition "click" reaction, as verified by GPC, (1) H NMR, FTIR, and MALDI-TOF mass spectrometry. The cyclic-PAzoMMA showed higher glass transition temperatures than the linear-PAzoMMA with the same molecular weight. Interestingly, the cyclic-PAzoMMA exhibited deeper modulation depth (M.D.) induced by SRG, larger value of the photoinduced birefringence, increased fluorescence emission, and longer fluorescence lifetime in comparison with its linear counterpart.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alkynes / chemistry
Azides / chemistry*
Fluorescence
Molecular Structure
Naphthalenes / chemistry*
Polymerization
Polymers / chemical synthesis
Polymers / chemistry*
Surface Properties

Substances

Alkynes
Azides
Naphthalenes
Polymers
naphthalene