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Chuanjiang Qin, Yanxiang Cheng, Lixiang Wang, X. Jing, Fo-song Wang (2008)
Phosphonate-Functionalized Polyfluorene as a Highly Water-Soluble Iron(III) ChemosensorMacromolecules, 41
Yuxin Hu, Geoffrey Smith, Michael Richardson, C. McCormick (1997)
Water Soluble Polymers. 74. pH Responsive Microdomains in Labeled n-Octylamide-Substituted Poly(sodium maleate-alt-ethyl vinyl ethers): Synthesis, Steady-State Fluorescence, and Nonradiative Energy Transfer StudiesMacromolecules, 30
Gang Li, Xiu-lin Zhu, Zhenping Cheng, Wei Zhang, Bin Sun (2008)
Synthesis of Poly(methyl methacrylate) Labeled with Fluorescein Moieties via Atom Transfer Radical PolymerizationJournal of Macromolecular Science, Part A, 45
Kwanyeol Paek, Sunhaeng Chung, C. Cho, Bumjoon Kim (2011)
Fluorescent and pH-responsive diblock copolymer-coated core-shell CdSe/ZnS particles for a color-displaying, ratiometric pH sensor.Chemical communications, 47 37
Qingling Xu, Lingling An, Minghui Yu, Shu Wang (2008)
Design and Synthesis of a New Conjugated Polyelectrolyte as a Reversible pH SensorMacromolecular Rapid Communications, 29
Xinde Tang, Longcheng Gao, N. Han, Xinghe Fan, Qifeng Zhou (2007)
Synthesis and characterization of 4‐arm star side‐chain liquid crystalline polymers containing azobenzene with different terminal substituents via ATRPJournal of Polymer Science Part A, 45
Haifeng Gao, K. Matyjaszewski (2007)
Low-Polydispersity Star Polymers with Core Functionality by Cross-Linking Macromonomers Using Functional ATRP InitiatorsMacromolecules, 40
Kan‐Yi Pu, Jianbing Shi, Liping Cai, Kai Li, B. Liu (2011)
Affibody-attached hyperbranched conjugated polyelectrolyte for targeted fluorescence imaging of HER2-positive cancer cell.Biomacromolecules, 12 8
Barbara Mendrek, B. Trzebicka (2009)
Synthesis and characterization of well-defined poly(tert-butyl acrylate) star polymersEuropean Polymer Journal, 45
Xiaoshuang Feng, C. Pan (2001)
Synthesis and characterization of star polymers initiated by hexafunctional discotic initiator through atom transfer radical polymerizationJournal of Polymer Science Part A, 39
Matthew Hunley, Jeneffer England, T. Long (2010)
Influence of Counteranion on the Thermal and Solution Behavior of Poly(2-(dimethylamino)ethyl methacrylate)-Based PolyelectrolytesMacromolecules, 43
Kelly and, K. Matyjaszewski (2000)
Atom Transfer Radical Polymerization of tert-Butyl Acrylate and Preparation of Block CopolymersMacromolecules, 33
Fenggui Chen, Guangming Liu, Guangzhao Zhang (2012)
Synthesis of cyclic polyelectrolyte via direct copper(I)-catalyzed click cyclizationJournal of Polymer Science Part A, 50
F. Plamper, H. Becker, M. Lanzendörfer, M. Patel, A. Wittemann, M. Ballauff, A. Müller (2005)
Synthesis, Characterization and Behavior in Aqueous Solution of Star-Shaped Poly(acrylic acid)Macromolecular Chemistry and Physics, 206
S. Shiratori, M. Rubner (2000)
pH-Dependent Thickness Behavior of Sequentially Adsorbed Layers of Weak PolyelectrolytesMacromolecules, 33
Mingfeng Wang, S. Zou, G. Guerin, Lei Shen, Kangqing Deng, Marcus Jones, G. Walker, G. Scholes, M. Winnik (2008)
A Water-Soluble pH-Responsive Molecular Brush of Poly(N,N-dimethylaminoethyl methacrylate) Grafted PolythiopheneMacromolecules, 41
Mark Palmier, S. Doren (2007)
Rapid determination of enzyme kinetics from fluorescence: overcoming the inner filter effect.Analytical biochemistry, 371 1
Xiaowen Wang, Guangming Liu, Guangzhao Zhang (2011)
Conformational behavior of grafted weak polyelectrolyte chains: effects of counterion condensation and nonelectrostatic anion adsorption.Langmuir : the ACS journal of surfaces and colloids, 27 16
N. Vlachy, B. Jagoda-Cwiklik, Robert Vácha, D. Touraud, P. Jungwirth, W. Kunz (2009)
Hofmeister series and specific interactions of charged headgroups with aqueous ions.Advances in colloid and interface science, 146 1-2
Y. Hou, Changqiang Yu, Guangming Liu, To Ngai, Guangzhao Zhang (2010)
Effects of anions on the aggregation of charged microgels.The journal of physical chemistry. B, 114 11
Chunyan Tan, M. Pinto, K. Schanze (2002)
Photophysics, aggregation and amplified quenching of a water-soluble poly(phenylene ethynylene).Chemical communications, 5
H. Naarmann, M. Hanack, Robert Mattmer (1994)
A High Yield Easy Method for the Preparation of Alkoxy-Substituted TriphenylenesSynthesis, 1994
G. Richards, J. Labuta, Jonathan Hill, T. Mori, K. Ariga (2010)
Designing Lower Critical Solution Temperature Behavior into a Discotic Small MoleculeJournal of Physical Chemistry Letters, 1
Wayne George, Mark Giles, I. McCulloch, J. Mello, J. Steinke (2007)
Amplified fluorescence quenching in high ionic strength media.Soft matter, 3 11
W. Kunz, P. Nostro, B. Ninham (2004)
The present state of affairs with Hofmeister effectsCurrent Opinion in Colloid and Interface Science, 9
Joshua Swann, W. Bras, P. Topham, J. Howse, A. Ryan (2010)
Effect of the Hofmeister anions upon the swelling of a self-assembled pH-responsive hydrogel.Langmuir : the ACS journal of surfaces and colloids, 26 12
Huaming Sun, Ziwei Gao, Lin Yang, Lingxiang Gao, X. Lv (2010)
Synthesis and characterization of novel four-arm star PDMAEMA-stabilized colloidal silver nanoparticlesColloid and Polymer Science, 288
K. Collins (2004)
Ions from the Hofmeister series and osmolytes: effects on proteins in solution and in the crystallization process.Methods, 34 3
D. Parsons, M. Boström, P. Nostro, B. Ninham (2011)
Hofmeister effects: interplay of hydration, nonelectrostatic potentials, and ion size.Physical chemistry chemical physics : PCCP, 13 27
Chaoyang Wang, Zhen Tong, Fang Zeng, Biye Ren, Xinxing Liu (2002)
Fluorescence study of chromophore labeled strong polyelectrolyte bound with oppositely charged surfactantColloid and Polymer Science, 280
Andrés García, Thuc‐Quyen Nguyen (2008)
Effect of Aggregation on the Optical and Charge Transport Properties of an Anionic Conjugated PolyelectrolyteJournal of Physical Chemistry C, 112
M. Mcshane, J. Brown, K. Guice, Y. Lvov (2002)
Polyelectrolyte microshells as carriers for fluorescent sensors: loading and sensing properties of a ruthenium-based oxygen indicator.Journal of nanoscience and nanotechnology, 2 3-4
W. Kunz (2010)
Specific ion effects in colloidal and biological systemsCurrent Opinion in Colloid and Interface Science, 15
C. Hoven, Andrés García, G. Bazan, Thuc‐Quyen Nguyen (2008)
Recent Applications of Conjugated Polyelectrolytes in Optoelectronic DevicesAdvanced Materials, 20
E. Lim (1986)
Proximity effect in molecular photophysics: dynamical consequences of pseudo-Jahn-Teller interactionThe Journal of Physical Chemistry, 90
R. Rutkaite, L. Swanson, Y. Li, S. Armes (2008)
Fluorescence studies of pyrene-labelled, pH-responsive diblock copolymer micelles in aqueous solutionPolymer, 49
Zhizhang Guo, Xingyu Chen, Jianyu Xin, Duo Wu, Jianshu Li, Chen-Bo Xu (2010)
Effect of Molecular Weight and Arm Number on the Growth and pH-Dependent Morphology of Star Poly[2-(dimethylamino)ethyl methacrylate]/Poly(styrenesulfonate) Multilayer FilmsMacromolecules, 43
M. Druchok, B. Hribar-Lee, H. Krienke, V. Vlachy (2008)
A Molecular Dynamics study of short-chain polyelectrolytes in explicit water: Toward the origin of ion-specific effectsChemical Physics Letters, 450
T. Visser, F. Groen, G. Brakenhoff (1991)
Absorption and scattering correction in fluorescence confocal microscopyJournal of Microscopy, 163
K. Tao, Tiayuan Wu, Dairen Lu, Ruke Bai, Hong-fei Li, L. An (2008)
Synthesis and characterization of a novel two-component organogelator based on ion-bonded discotic complexJournal of Molecular Liquids, 142
Qilong Sun, Zhen Tong, Chaoyang Wang, Xinxing Liu, Fang Zeng (2003)
Fluorescence decay and quenching of pyrene labeled on sulfonate polyelectrolytes in salt-free aqueous solutionsEuropean Polymer Journal, 39
Marc Gurau, Soon-Mi Lim, Edward Castellana, Fernando Albertorio, S. Kataoka, P. Cremer (2004)
On the mechanism of the hofmeister effect.Journal of the American Chemical Society, 126 34
Chuanjiang Qin, Xiaofu Wu, H. Tong, Lixiang Wang (2010)
High solubility and photoluminescence quantum yield water-soluble polyfluorenes with dendronized amino acid side chains: synthesis, photophysical, and metal ion sensing propertiesJournal of Materials Chemistry, 20
S. Hecht, and Ihre, J. Fréchet (1999)
Porphyrin Core Star Polymers: Synthesis, Modification, and Implication for Site IsolationJournal of the American Chemical Society, 121
B. Schwartz (2003)
Conjugated polymers as molecular materials: how chain conformation and film morphology influence energy transfer and interchain interactions.Annual review of physical chemistry, 54
Mahuya Bagui, Tanmoy Dutta, S. Chakraborty, J. Melinger, Haizheng Zhong, A. Keightley, Zhonghua Peng (2011)
Synthesis and optical properties of triphenylene-based dendritic donor perylene diimide acceptor systems.The journal of physical chemistry. A, 115 9
Fuke Wang, G. Bazan (2006)
Aggregation-mediated optical properties of pH-responsive anionic conjugated polyelectrolytes.Journal of the American Chemical Society, 128 49
In the present study, by use of the atom transfer radical polymerization (ATRP) method, we have prepared well-defined 6-arm star-shaped poly[2-(dimethylamino)ethyl methacrylate] (PDEM) and poly(acrylic acid) (PAA) containing a fluorescent triphenylene core and have studied the pH and ion-species sensitive fluorescence properties of such two star polyelectrolytes. The results obtained by analytical ultracentrifugation indicate that the star PDEM molecules will aggregate together as the pH increases over the pKa but the star PAA molecules will keep a monomeric state over the whole pH range. For both PDEM and PAA, the fluorescence intensity decreases with increasing pH, indicating that the fluorescence intensities of PDEM and PAA are dominated by aggregation induced fluorescence quenching and the chain conformation controlled nonradiative relaxation, respectively. This suggestion is further confirmed by the fact that the star PDEM molecules can form excimers at high pHs and no excimer emission peak can be observed for the star PAA molecules. In the studies of ion-specific fluorescence properties at different pH, for both of the two polyelectrolytes, the ion specificity is determined by the counterion condensation for the charged chains, whereas nonelectrostatic ion adsorption governs the specific ion effect for the uncharged chains.
Soft Matter – Royal Society of Chemistry
Published: May 23, 2012
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