Synthesis and fluorescent properties of PAA-based new side chain polymers

Li, Najun; Lu, Jianmei; Yao, Shechun; Xia, Xinhui; Zhu, Xiulin

doi:10.1016/j.matlet.2004.05.052

Cited by 9 publications

(2 citation statements)

References 11 publications

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“…Accordingly, there have been increasing researches in azobenzene containing side-chain and main-chain NLO polymers which have the azobenzene groups covalently bonded within the polymers. [11][12][13][14][15][16][17][18][19] We have recently reported [20][21] the synthesis of a new series of azobenzene-containing side-chain polymers by grafting azobenzene compounds to conjugated polymers and by radical polymerization from the monomers of acrylates containing azobenzene group. [22] Recently, more and more copolymers [23][24][25][26] and even few homopolymers, [27] containing azobenzene side chain are synthesized by the atom transfer radical polymerization (ATRP) technique.…”

Section: Introductionmentioning

confidence: 99%

Atom Transfer Radical Polymerization and Third‐Order Nonlinear Optical Properties of New Azobenzene‐Containing Side‐Chain Polymers

et al. 2007

Macro Chemistry & Physics

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The atom transfer radical polymerization (ATRP) technique has been successfully applied to synthesize a series of nonlinear optically (NLO) active homopolymers, 4‐(4‐nitrophenyl‐diazenyl) phenyl acrylate (P‐NPAPA) and 4‐(4‐methoxyphenyl‐diazenyl) phenyl acrylate (P‐MPAPA), containing azobenzene groups on the side chain. The third‐order NLO properties of the polymer films were measured by the degenerated four‐wave mixing (DFWM) technique. A dependence of the χ(3) values and response times of polymers on their number‐average molecular weight and the electronic effect of the substituent (nitro‐ or methoxy‐) on the azobenzene group have been evidenced. The increasing χ(3) value of the polymer films at the magnitude of about 10−10 was displayed with increasing molecular weight and the presence of the push‐pull electronic system contributes much in enhancing the third‐order NLO susceptibility of polymers.

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Section: Introductionmentioning

confidence: 99%

Atom Transfer Radical Polymerization and Third‐Order Nonlinear Optical Properties of New Azobenzene‐Containing Side‐Chain Polymers

et al. 2007

Macro Chemistry & Physics

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“…Comparably, the PPy film synthesized under the same experimental conditions showed almost no fluorescence emission. The main reason for the difference between the PPPA and PPy films is that the introduction of side chains to the PPy structure produces new local conformations, alters the π−π electron delocalization, and thus leads to fluorescence emission in the visible region ,, . Another interesting phenomenon observed in Figure is the dramatic change of the fluorescence emission wavelength and intensity along the depth of the PPPA film.…”

Section: Resultsmentioning

confidence: 98%

Functionalized Polypyrrole Film: Synthesis, Characterization, and Potential Applications in Chemical and Biological Sensors

Dong

Cao

2009

ACS Appl. Mater. Interfaces

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In this paper, we report the synthesis of a carboxyl-functionalized polypyrrole derivative, a poly(pyrrole-N-propanoic acid) (PPPA) film, by electrochemical polymerization, and the investigation of its basic properties via traditional characterization techniques such as confocal-Raman, FTIR, SEM, AFM, UV-vis, fluorescence microscopy, and contact-angle measurements. The experimental data show that the as-prepared PPPA film exhibits a hydrophilic nanoporous structure, abundant -COOH functional groups in the polymer backbone, and high fluorescent emission under laser excitation. On the basis of these unique properties, further experiments were conducted to demonstrate three potential applications of the PPPA film in chemical and biological sensors: a permeable and permselective membrane, a membrane with specific recognition sites for biomolecule immobilization, and a fluorescent conjugated polymer for amplification of fluorescence quenching. Specifically, the permeability and permselectivity of ion species through the PPPA film are detected by means of rotating-disk-electrode voltammetry; the specific recognition sites on the film surface are confirmed with protein immobilization, and the amplification of fluorescence quenching is measured by the addition of a quenching agent with fluorescence microscopy. The results are in good agreement with our expectations.

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Thermosetting Resins

2007

Microwave‐Enhanced Polymer Chemistry and Technology

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Synthesis and fluorescent properties of PAA-based new side chain polymers

Cited by 9 publications

References 11 publications

Atom Transfer Radical Polymerization and Third‐Order Nonlinear Optical Properties of New Azobenzene‐Containing Side‐Chain Polymers

Atom Transfer Radical Polymerization and Third‐Order Nonlinear Optical Properties of New Azobenzene‐Containing Side‐Chain Polymers

Functionalized Polypyrrole Film: Synthesis, Characterization, and Potential Applications in Chemical and Biological Sensors

Thermosetting Resins

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