A High‐Content Diarylethene Photochromic Polymer for an Efficient Fluorescence Modulation

Summary: A highly fluorescent photochromic polymer, poly-BTFO4, was prepared. The fluorescence quantum yield of the poly-BTFO4 was six times higher than that of BTFO4. Fatigue resistance of the polymer at its photostationary state was significantly enhanced compared with that of BTFO4. Importantly, the poly-BTFO4 film also showed an efficient photochromism as well as strong fluorescence similar to the results in solution, which allow photoinduced fluorescence switching applicable to optical switches. Improvement of fluorescence quantum yield and fatigue resistance.

[1]  He Tian,et al.  Recent progresses on diarylethene based photochromic switches. , 2004, Chemical Society reviews.

[2]  Giuseppe Zerbi,et al.  A High Quantum Yield Diarylethene-Backbone Photochromic Polymer , 1999 .

[3]  Z. Zhang,et al.  Novel synthesis of photochromic polymers via ROMP. , 2000, Organic letters.

[4]  N. Branda,et al.  Ultra‐High‐Density Photochromic Main‐Chain 1,2‐Dithienylcyclopentene Polymers Prepared Using Ring‐Opening Metathesis Polymerization , 2004 .

[5]  Eunkyoung Kim,et al.  Development of highly fluorescent photochromic material with high fatigue resistance , 2006 .

[6]  N. Branda,et al.  A Family of Multiaddressable, Multicolored Photoresponsive Copolymers Prepared by Ring-Opening Metathesis Polymerization , 2005 .

[7]  Shinichiro Nakamura,et al.  Synthesis of Novel Photochromic Films by Oxidation Polymerization of Diarylethenes Containing Phenol Groups , 2003 .

[8]  Eunkyoung Kim,et al.  Highly fluorescent photochromic diarylethene in the closed-ring form. , 2005, Chemical communications.

[9]  N. Branda,et al.  Novel Photochromic Homopolymers Based on 1,2-Bis(3-thienyl)cyclopentenes , 2003 .

[10]  Eunkyoung Kim,et al.  Photo-induced electrical switching through a mainchain polymer , 2006 .

[11]  H. Tian,et al.  Synthesis and Photochromic Properties of New Bisthienylethene Derivatives and a Copolymer , 2000 .

[12]  Eunkyoung Kim,et al.  Polymerization of a photochromic diarylethene by friedel : Crafts alkylation , 2006 .

[13]  S. Kobatake,et al.  Fatigue resistant properties of photochromic dithienylethenes: by-product formation , 1999 .

[14]  Satoshi Kawata,et al.  Three-Dimensional Optical Data Storage Using Photochromic Materials. , 2000, Chemical reviews.

[15]  A. Bobrovsky,et al.  A Combination of Selective Light Reflection and Fluorescence Modulation in a Cholesteric Polymer Matrix , 2005 .

[16]  Hyowon Lee,et al.  Photochromism and electrical transport characteristics of a dyad and a polymer with diarylethene and quinoline units. , 2005, The Journal of organic chemistry.

[17]  H. Tian,et al.  High-content pendant photochromic copolymer with dithienylethene/fluorene 2:1 mole ratio , 2005 .

[18]  F. Raymo,et al.  Electron and energy transfer modulation with photochromic switches. , 2005, Chemical Society reviews.

[19]  N. Branda,et al.  High‐Content Photochromic Polymers Based on Dithienylethenes , 2005 .

[20]  T. Kawai,et al.  A Novel Photoresponsive π‐Conjugated Polymer Based on Diarylethene and its Photoswitching Effect in Electrical Conductivity , 2005 .

[21]  Masahiro Irie,et al.  Diarylethenes for Memories and Switches. , 2000, Chemical reviews.

[22]  Eunkyoung Kim,et al.  Fatigue-resistant photochromic dithienylethenes by controlling the oxidation state. , 2006, Chemical communications.

[23]  N. Branda,et al.  1,2-Dithienylethene Photochromes and Non-destructive Erasable Memory , 2002 .

[24]  H. Tian,et al.  Photochromic Copolymers Containing Bisthienylethene Units , 2004 .

[25]  Andrea Bianco,et al.  Poly(dithienylethene‐alt‐1,4‐divinylenephenylene)s: Increasing the Molecular Weights in Diarylethene Photochromic Polymers , 2004 .

[26]  N. Branda,et al.  Limited photochromism in covalently linked double 1,2-dithienylethenes , 2000 .

[27]  Eunkyoung Kim,et al.  Fatigue Property of Oxidized Photochromic Dithienylethene Derivative for Permanent Optical Recording , 2005 .

[28]  Masahiro Irie,et al.  Organic chemistry: A digital fluorescent molecular photoswitch , 2002, Nature.

[29]  T. Kawai,et al.  Fatigue Mechanism of Photochromic 1,2-Bis(2,5-dimethyl-3-thienyl)perfluorocyclopentene , 2000 .

[30]  Soo Young Park,et al.  Bistable Photoswitching in the Film of Fluorescent Photochromic Polymer: Enhanced Fluorescence Emission and Its High Contrast Switching , 2005 .

[31]  B. Cheong,et al.  Theoretical Investigation of 2,3‐Bis(2,4,5‐trimethyl‐3‐thienyl)maleic Anhydride: A Thermally Irreversible Photochromic System. , 1998 .

[32]  Se Youn Cho,et al.  Preparation of diarylethene copolymers and their photoinduced refractive index change , 2003 .