1
|
Jinish Antony M, Albin Jolly C, Rohini Das K, Swathy T. Normal and reverse AOT micelles assisted interfacial polymerization for polyaniline nanostructures. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123627] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
2
|
Khadem F, Pishvaei M, Salami-Kalajahi M, Najafi F. Morphology control of conducting polypyrrole nanostructures via operational conditions in the emulsion polymerization. J Appl Polym Sci 2017. [DOI: 10.1002/app.44697] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fatemeh Khadem
- Department of Polymer Engineering; Sahand University of Technology; P.O. Box 51335-1996, Tabriz, Iran
| | - Malihe Pishvaei
- Department of Resin and Additives; Institute for Color Science and Technology; P.O. Box 16765-654, Tehran, Iran
| | - Mehdi Salami-Kalajahi
- Department of Polymer Engineering; Sahand University of Technology; P.O. Box 51335-1996, Tabriz, Iran
| | - Farhood Najafi
- Department of Resin and Additives; Institute for Color Science and Technology; P.O. Box 16765-654, Tehran, Iran
| |
Collapse
|
3
|
Rohini Das K, Jinish Antony M. Synthesis and characterisation of water dispersible copolymer submicron spheres of poly-(phenylenediamine-co-N-sulfopropyl aniline) via random copolymerisation. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.01.078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
4
|
Rajender B, Palaniappan S. Simultaneous Oxidation and Doping of Aniline to Polyaniline by Oxidative Template: Electrochemical Performance in Supercapacitor. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2015.1038814] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
5
|
Boddula R, Srinivasan P. Role of dual dopants in highly ordered crystalline polyaniline nanospheres: Electrode materials in supercapacitors. J Appl Polym Sci 2015. [DOI: 10.1002/app.42510] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Rajender Boddula
- Polymers and Functional Materials Division; Indian Institute of Chemical Technology, Council of Scientific and Industrial Research; Hyderabad 500 007 India
| | - Palaniappan Srinivasan
- Polymers and Functional Materials Division; Indian Institute of Chemical Technology, Council of Scientific and Industrial Research; Hyderabad 500 007 India
| |
Collapse
|
6
|
Díaz-Orellana KP, Roberts ME. Scalable, template-free synthesis of conducting polymer microtubes. RSC Adv 2015. [DOI: 10.1039/c4ra16000b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A template-free synthesis method is used to create polypyrrole microtubes on stainless steel mesh substrates. The physical and electrochemical properties of the microtubes can be tailored by changing substrate dimensions and growth conditions.
Collapse
Affiliation(s)
| | - Mark E. Roberts
- Department of Chemical and Biomolecular Engineering
- Clemson University
- Clemson
- USA
| |
Collapse
|
7
|
Bolagam R, Boddula R, Srinivasan P. Synthesis of highly crystalline polyaniline with the use of (Cyclohexylamino)-1-propanesulfonic acid for supercapacitor. J APPL ELECTROCHEM 2014. [DOI: 10.1007/s10800-014-0753-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
8
|
Quites FJ, Faria GC, Germino JC, Atvars TDZ. Tuning Emission Colors from Blue to Green in Polymeric Light-Emitting Diodes Fabricated using Polyfluorene Blends. J Phys Chem A 2014; 118:10380-90. [DOI: 10.1021/jp503819u] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Fernando Júnior Quites
- Chemistry Institute, State University of Campinas, POB. 6154, Campinas, 13084-971 SP, Brazil
| | - Gregório Couto Faria
- Instituto de Física
de São Carlos, University of São Paulo, POB. 369, São Carlos, 13560-970 SP, Brazil
| | - José Carlos Germino
- Chemistry Institute, State University of Campinas, POB. 6154, Campinas, 13084-971 SP, Brazil
| | | |
Collapse
|
9
|
Zhu X, Hou K, Chen C, Zhang W, Sun H, Zhang G, Gao Z. Structural-controlled synthesis of polyaniline nanoarchitectures using hydrothermal method. HIGH PERFORM POLYM 2014. [DOI: 10.1177/0954008314543291] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Three new polyaniline (PANI) micro/nanostructures featuring square nanosheets, microspheres and microdisks are successfully synthesized via hydrothermal method. Uniform sizes and thickness of highly crystalline PANI square structural nanosheets can be tuned by the oxidation polymerization in the presence of cetyltrimethylammonium bromide (CTAB) as a template. Mechanistic studies indicate that concentrations of aniline and CTAB, reaction temperature and time have great influence on the morphology of PANI polymers. Particularly, CTAB is essential to determine the morphology of synthetic PANI. In aqueous solution at extremely high temperature and pressure, CTAB provides various self-assembly of micelles, such as spherical micelle, planar bilayer, and lamellar phase, in which corresponding micro/nanostructures are formed. This hydrothermal fabrication gives an excellent example for the preparation of well-defined two-dimensional PANI micro/nanomaterials and potentially for other synthetic polymers.
Collapse
Affiliation(s)
- Xuyang Zhu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Kun Hou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Chun Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Weiqiang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Guofang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, People’s Republic of China
| |
Collapse
|
10
|
Abstract
Bone defects requiring grafts to promote healing are frequently occurring and costly problems in health care. Chitosan, a biodegradable, naturally occurring polymer, has drawn considerable attention in recent years as scaffolding material in tissue engineering and regenerative medicine. Chitosan is especially attractive as a bone scaffold material because it supports the attachment and proliferation of osteoblast cells as well as formation of mineralized bone matrix. In this review, we discuss the fundamentals of bone tissue engineering and the unique properties of chitosan as a scaffolding material to treat bone defects for hard tissue regeneration. We present the common methods for fabrication and characterization of chitosan scaffolds, and discuss the influence of material preparation and addition of polymeric or ceramic components or biomolecules on chitosan scaffold properties such as mechanical strength, structural integrity, and functional bone regeneration. Finally, we highlight recent advances in development of chitosan-based scaffolds with enhanced bone regeneration capability.
Collapse
Affiliation(s)
- Sheeny Lan Levengood
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195 USA
| | - Miqin Zhang
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195 USA
| |
Collapse
|
11
|
Pirhady Tavandashti N, Ghorbani M, Shojaei A. Controlled growth of hollow polyaniline structures: From nanotubes to microspheres. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.07.071] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
12
|
Singh H, Balamurugan A, Jayakannan M. Solid state assemblies and photophysical characteristics of linear and bent-core π-conjugated oligophenylenevinylenes. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5578-5591. [PMID: 23716506 DOI: 10.1021/am400868e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
New classes of luminescent linear, bent-core, and star-shaped oligophenylenevinylenes (OPVs) having 1,4-para and 1,3-meta rigid aromatic cores were designed and developed. 3-Pentadecylphenol, a renewable resource molecule, was chosen as the flexible unit at the longitudinal or middle position of the OPV aromatic core for solid state ordering. Depending upon the nature of the π-core, the OPVs exhibited either mosaic-type liquid crystalline textures or spherulitic crystalline solids. The enthalpies of melting transitions revealed that the bent-core OPV structure showed enhanced solid state packing compared to linear or star-shaped OPVs. Small and wide-angle X-ray diffraction analysis confirmed layered-like assemblies in OPV molecules. Photophysical experiments such as excitation, emission, and time-resolved fluorescence decay dynamics were carried out to trace the molecular self-organization of OPV chromophores. Time correlated single photon counting technique (TCSPC) luminescent decay profiles and decay lifetimes (τ1 and τ2 values) revealed that the OPV chromophores showed faster exciton decay in the tightly packed bent-core structure. The weakly packed star-shaped OPV showed enhanced excited state luminescence stability up to 10 ns. A direct correlation between the OPV chemical structure, solid state ordering, and photophysical characteristics was established.
Collapse
Affiliation(s)
- Harpreet Singh
- Department of Chemistry, Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, Maharashtra, India
| | | | | |
Collapse
|
13
|
Wang K, Hoshina Y, Cao Y, Tagaya M, Kobayashi T. Novel Metal-Like Luster Conductive Film Made of Pyrrole and Furfural in Straightforward Chemical Copolymerization. Ind Eng Chem Res 2013. [DOI: 10.1021/ie302814a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kun Wang
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1
Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Yusuke Hoshina
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1
Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Yang Cao
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1
Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Motohiro Tagaya
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1
Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Takaomi Kobayashi
- Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1
Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| |
Collapse
|
14
|
Stevens AL, Kaeser A, Schenning APHJ, Herz LM. Morphology-dependent energy transfer dynamics in fluorene-based amphiphile nanoparticles. ACS NANO 2012; 6:4777-4787. [PMID: 22548325 DOI: 10.1021/nn204942r] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanoparticles are interesting systems to study because of their large range of potential uses in biological imaging and sensing. We investigated molecular nanoparticles formed by fast injection of a small volume of molecularly dissolved fluorene-derivative amphiphilic molecules into a polar solvent, which resulted in solid spherical particles of ∼80 nm diameter with high stability. Energy transfer studies were carried out on two-component nanoparticles that contained mixtures of donor and acceptor amphiphiles of various fractions. We conducted time-resolved photoluminescence measurements on the two-component nanoparticles in order to determine whether the fundamental donor-acceptor interaction parameter (the Förster radius) depends on the acceptor concentration. The Förster radius was found to be large for very low incorporated acceptor fractions (<0.1%), but it declined with increasing concentration. These changes were concomitant with shifts in the acceptor emission and absorption circular dichroism spectra that indicated an increasing clustering of acceptors into domains as their fraction was raised. In addition, for acceptor fractions below 2% the extracted Förster radii were found to be significantly larger than predicted from donor-acceptor spectral overlap calculations, in accordance with efficient excitation diffusion within the donor matrix, aiding the overall transfer to acceptors. We conclude that energy transfer in two-component nanoparticles shows a complex interplay between phase segregation of the constituent donor and acceptor molecules and excitation diffusion within their domains.
Collapse
Affiliation(s)
- Amy L Stevens
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | | | | | | |
Collapse
|
15
|
Wang J, Zhang D. One-Dimensional Nanostructured Polyaniline: Syntheses, Morphology Controlling, Formation Mechanisms, New Features, and Applications. ADVANCES IN POLYMER TECHNOLOGY 2012. [DOI: 10.1002/adv.21283] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
16
|
Shinde SD, Jayakannan M. New amphiphilic sulfonic acid dopant-cum-templates for diverse conducting polyaniline nanomaterials. J Appl Polym Sci 2012. [DOI: 10.1002/app.37880] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
17
|
Bellanger H, Darmanin T, Taffin de Givenchy E, Guittard F. Superhydrophobic hollow spheres by electrodeposition of fluorinated poly(3,4-ethylenedithiopyrrole). RSC Adv 2012. [DOI: 10.1039/c2ra21665e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
18
|
Spires JB, Peng H, Williams D, Travas-Sejdic J. An improved terthiophene conducting polymer for DNA-sensing. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.09.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
19
|
Spires JB, Peng H, Williams D, Travas-Sejdic J. The solvent-induced collapse of a redox-active conducting polymer and the consequence on its DNA-sensing ability. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.02.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
20
|
Antony MJ, Jayakannan M. Polyaniline nanoscaffolds for colorimetric sensing of biomolecules via electron transfer process. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:6268-6278. [PMID: 21517026 DOI: 10.1021/la200047t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Biologically important analytes such as cysteine and vitamin-C were detected by electron transfer (ET) via naked eye colorimetric sensing using a tailor-made water-soluble self-doped polyaniline (PSPANa) as a substrate. Monomer (N-3-sulfopropylaniline) was synthesized via ring-opening of propane sultone with excess aniline and polymerized in water using ammonium persulfate to obtain green water-soluble polymer. Vitamin-C (ascorbic acid) and cysteine showed unexpected sharp and instantaneous color change from blue to colorless sensing action. The stoichiometry of the analyte to polymer was determined as 3:2 and 4:1 with association (or binding) constants of K = 2.1 × 10(3) and 1.5 × 10(3) M(-1) for vitamin-C and cysteine, respectively. Efficient electron transfer from vitamin-C (also cysteine) to the quinoid unit of the polyaniline base occurred in solution; as a result, the color of the solution changed from deep blue to colorless. Cyclic voltammetry analysis of PSPANa showed the disappearance of the cathodic peak at -0.21 V upon the addition of analytes (vitamin-C and cysteine) and confirms the electron transfer from the analyte to the polymer backbone. Dynamic light scattering (DLS) and zeta potential techniques were utilized to trace the molecular interactions in the electron transfer process. DLS histograms of the polymer samples confirmed the existence of nanoaggregates of 8-10 nm in diameter. The polymers possessed typical amphiphilic structure to produce micellar aggregates which facilitate the efficient electron transfer occurred between the analyte and polyaniline backbone.
Collapse
Affiliation(s)
- M Jinish Antony
- Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India
| | | |
Collapse
|
21
|
Antony MJ, Jayakannan M. Role of Anionic Micellar Template on the Morphology, Solid-State Ordering, and Unusual Conductivity Trend in Poly(aniline-co-pyrrole) Nanomaterials. J Phys Chem B 2011; 115:6427-36. [DOI: 10.1021/jp2015726] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Jinish Antony
- Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India
| | - M. Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), 900, NCL Innovation Park, Dr. Homi Bhabha Road, Pune-411 008, Maharashtra, India
| |
Collapse
|
22
|
Venditti I, Fratoddi I, Battocchio C, Polzonetti G, Cametti C, Vittoria Russo M. Soluble polymers of monosubstituted acetylenes with quaternary ammonium pendant groups: structure and morphology. POLYM INT 2011. [DOI: 10.1002/pi.3066] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
23
|
Tran HD, D'Arcy JM, Wang Y, Beltramo PJ, Strong VA, Kaner RB. The oxidation of aniline to produce “polyaniline”: a process yielding many different nanoscale structures. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02699a] [Citation(s) in RCA: 232] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|