Multiple switching behaviors of poly(N-isopropylacrylamide) hydrogel with spironaphthoxazine and D-π-A type dye

被引：15

作者：

Lee, Eun-Mi ^{[1
]}

Gwon, Seon-Yeong ^{[1
]}

Ji, Byung-Chul ^{[1
]}

Wang, Sheng ^{[2
]}

Kim, Sung-Hoon ^{[1
,2
]}

机构：

[1] Kyungpook Natl Univ, Dept Adv Organ Mat Sci & Engn, Daegu 702701, South Korea

[2] Zhanjiang Normal Univ, Sch Chem Sci & Technol, Zhanjiang 524048, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2012年 / 132卷 / 03期

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

Poly(N-isopropylacrylamide); Spironaphthoxazine; D-pi-A type dye; Multiple switching; Photochromic switching; SPIROXAZINE POLYMER; PHASE-TRANSITION; TEMPERATURE; PH; PHOTOCHROMISM; COPOLYMERS; SENSOR;

D O I：

10.1016/j.jlumin.2011.09.025

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A multi-switchable poly(NIPAM-co-SPO-co-D-pi-A dye) hydrogel with a photochromic spironaphthoxazine and an electron donor-pi-conjugated-electron acceptor (D-pi-A) type dye was prepared by typical radical copolymerization. The low critical solution temperature (LCST) behavior was investigated by UV-vis spectroscopy, which allows the measurement of the phase transition from 20 to 40 degrees C in aqueous solution. The fluorescence intensity of the poly(NIPAM-co-SPO-co-D-pi-A dye) was temperature-dependent. Reversible modulation of fluorescence intensity was achieved using alternating irradiation with UV and visible light. Prepared polymer hydrogel also exhibited spectra change when not only used Cu2+ cation but also an acid unit. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：665 / 670

页数：6

共 46 条

[1]

[Anonymous], 1990, PHOTOCHROMISM MOL SY

[2]

Bamfield P., 2001, CHROMIC PHENOMENA TE

[3]

Crano JC, 1999, T APPL CHEM, V1, P1

[4]

Feringa B.L., 2001, MOL SWITCHIES

[5] PHASE-TRANSITION OF AQUEOUS-SOLUTIONS OF POLY(N-ISOPROPYLACRYLAMIDE) AND POLY(N-ISOPROPYLMETHACRYLAMIDE) [J].

FUJISHIGE, S ;

KUBOTA, K ;

ANDO, I .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (08) :3311-3313

[6] Photo-, thermally, and pH-responsive microgels [J].

Garcia, Antonio ;

Marquez, Manuel ;

Cai, Tong ;

Rosario, Rohit ;

Hu, Zhibing ;

Gust, Devens ;

Hayes, Mark ;

Vail, Sean A. ;

Park, Choong-Do .

LANGMUIR, 2007, 23 (01) :224-229

[7] Stimuli-reponsive polymers and their bioconjugates [J].

Gil, ES ;

Hudson, SM .

PROGRESS IN POLYMER SCIENCE, 2004, 29 (12) :1173-1222

[8] Temperature sensitization of liposomes using copolymers of N-ispopropylacrylamide [J].

Hayashi, H ;

Kono, K ;

Takagishi, T .

BIOCONJUGATE CHEMISTRY, 1999, 10 (03) :412-418

[9] Development of fluorescent microgel thermometers based on thermo responsive polymers and their modulation of sensitivity range [J].

Iwai, K ;

Matsumura, Y ;

Uchiyama, S ;

de Silva, AP .

JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (27-28) :2796-2800

[10] Colorimetric sensor Arrays for volatile organic compounds [J].

Janzen, Michael C. ;

Ponder, Jennifer B. ;

Bailey, Daniel P. ;

Ingison, Crystal K. ;

Suslick, Kenneth S. .

ANALYTICAL CHEMISTRY, 2006, 78 (11) :3591-3600

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