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Adaval A, Subash CK, Shafeeq VH, Singh S, Maji PK, Aslam M, Turney TW, Simon GP, Bhattacharyya AR. Exploring interfacial interactions, dielectric, ferroelectric and piezoelectric properties of ultrahigh molecular weight polyethylene/graphene oxide nanocomposites. J Appl Polym Sci 2022. [DOI: 10.1002/app.53379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Akanksha Adaval
- Department of Metallurgical Engineering and Materials Science Indian Institute of Technology Bombay Mumbai India
- Department of Materials Science and Engineering Monash University Clayton Victoria Australia
- IITB‐Monash Research Academy Indian Institute of Technology Bombay Mumbai India
| | | | - Valiyaveetil H. Shafeeq
- Department of Metallurgical Engineering and Materials Science Indian Institute of Technology Bombay Mumbai India
| | - Shiva Singh
- Department of Polymer and Process Engineering Indian Institute of Technology Roorkee Saharanpur India
| | - Pradip K. Maji
- Department of Polymer and Process Engineering Indian Institute of Technology Roorkee Saharanpur India
| | - Mohammed Aslam
- Department of Physics Indian Institute of Technology Bombay Mumbai India
| | - Terence W. Turney
- Department of Materials Science and Engineering Monash University Clayton Victoria Australia
| | - George P. Simon
- Department of Materials Science and Engineering Monash University Clayton Victoria Australia
| | - Arup R. Bhattacharyya
- Department of Metallurgical Engineering and Materials Science Indian Institute of Technology Bombay Mumbai India
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2
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Xu S, Snyder CR, Rowlette J, Lee YJ. Three-Dimensional Molecular Orientation Imaging of a Semicrystalline Polymer Film under Shear Deformation. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Shuyu Xu
- Biosystems and Biomaterials Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Chad R. Snyder
- Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Jeremy Rowlette
- DRS Daylight Solutions, San Diego, California 92127, United States
| | - Young Jong Lee
- Biosystems and Biomaterials Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
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3
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Jiang L, Zhu M, An M, Li Y, Miao W, Wang Z, Hsiao BS. The influence of short chain branch on formation of shear-induced crystals in bimodal polyethylene at low shear temperatures. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Yao Y, Jiang S, Rastogi S. 13C Solid State NMR Characterization of Structure and Orientation Development in the Narrow and Broad Molar Mass Disentangled UHMWPE. Macromolecules 2014. [DOI: 10.1021/ma402232c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yefeng Yao
- Department of Physics & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, North Zhongshan Road 3663, 200062 Shanghai, P. R. China
| | - Songzi Jiang
- Department of Physics & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, North Zhongshan Road 3663, 200062 Shanghai, P. R. China
| | - Sanjay Rastogi
- Department
of Materials, Loughborough University, Leicestershire, LE11 3TU, England, U.K
- Research
Institute, Teijin Aramid, Velperweg 76, 6802
ED Arnhem, The Netherlands
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5
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Atvars TDZ, Abraham S, Hill AJ, Pas SJ, Chesta C, Weiss RG. Modulation of the Photophysical Properties of Pyrene by the Microstructures of Five Poly(alkyl methacrylate)s Over a Broad Temperature Range. Photochem Photobiol 2013; 89:1346-53. [DOI: 10.1111/php.12103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 05/21/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Teresa D. Z. Atvars
- Chemistry Institute; State University of Campinas (Unicamp); Campinas Brazil
| | - Shibu Abraham
- Department of Chemistry and Institute for Soft Matter Synthesis and Metrology; Georgetown University; Washington DC
| | - Anita J. Hill
- CSIRO Materials Science and Engineering and Process Science and Engineering; South Clayton Vic. Australia
- Monash University; Department of Materials Engineering and Chemistry; Clayton Vic. Australia
| | - Steven J. Pas
- CSIRO Materials Science and Engineering and Process Science and Engineering; South Clayton Vic. Australia
- Monash University; Department of Materials Engineering and Chemistry; Clayton Vic. Australia
| | - Carlos Chesta
- Departamento de Química; Universidad Nacional de Río Cuarto; Río Cuarto Argentina
| | - Richard G. Weiss
- Department of Chemistry and Institute for Soft Matter Synthesis and Metrology; Georgetown University; Washington DC
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6
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Khoshkhoo MS, Taromi FA, Kowsari E, Shalamzari EK. Contribution of chromophores with different numbers of repeat units to overall emission of MEH–PPV: An experimental and simulation study. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.05.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Abraham S, Atvars TDZ, Weiss RG. Effects of Temperature and Alkyl Groups of Poly(Alkyl methacrylate)s on Inter- and Intramolecular Interactions of Excited Singlet States of Pyrenyl Guest Molecules. J Phys Chem B 2010; 114:12221-33. [DOI: 10.1021/jp105461r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shibu Abraham
- Department of Chemistry, Georgetown University, Washington, D.C. 20057-1227, and Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, Campinas, SP, Brazil
| | - Teresa D. Z. Atvars
- Department of Chemistry, Georgetown University, Washington, D.C. 20057-1227, and Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, Campinas, SP, Brazil
| | - Richard G. Weiss
- Department of Chemistry, Georgetown University, Washington, D.C. 20057-1227, and Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, Campinas, SP, Brazil
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8
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Chen YZ, Weiss RG. Photoreactions of substituted o-cresyl acylates in cyclohexane and in polyethylene films. The influences of intra- and inter-molecular ‘crowding’ effects. Photochem Photobiol Sci 2009; 8:916-25. [DOI: 10.1039/b902109d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Uehara H, Takeuchi KI, Kakiage M, Yamanobe T, Komoto T. Nanoperiodic Arrangement of Crystal/Amorphous Phases Induced by Tensile Drawing of Highly Entangled Polyethylene. Macromolecules 2007. [DOI: 10.1021/ma070915z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroki Uehara
- Department of Chemistry, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Kei-ichi Takeuchi
- Department of Chemistry, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Masaki Kakiage
- Department of Chemistry, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Takeshi Yamanobe
- Department of Chemistry, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Tadashi Komoto
- Department of Chemistry, Gunma University, Kiryu, Gunma 376-8515, Japan
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Machado JC, Silva GG, Oliveira FCD, Lavall RL, Rieumont J, Licinio P, Windmöller D. Free-volume and crystallinity in low molecular weight poly(ethylene oxide). ACTA ACUST UNITED AC 2007. [DOI: 10.1002/polb.21242] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Machado AM, Munaro M, Martins TD, Dávila LYA, Giro R, Caldas MJ, Atvars TDZ, Akcelrud LC. Photoluminescence Studies of Phenanthrene−Azomethyne Conjugated−Nonconjugated Multiblock Copolymer. Macromolecules 2006. [DOI: 10.1021/ma052315a] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Angelita M. Machado
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Marilda Munaro
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Tatiana D. Martins
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Liliana Y. A. Dávila
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Ronaldo Giro
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Marília J. Caldas
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Teresa D. Z. Atvars
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Leni C. Akcelrud
- Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Instituto de Química, Unicamp, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; and Instituto de Física, USP, Cidade Universitária, 05508-900 São Paulo, SP, Brazil
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12
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Yamaki SB, Barros DS, Garcia CM, Socoloski P, Oliveira ON, Atvars TDZ. Spectroscopic studies of the intermolecular interactions of Congo red and tinopal CBS with modified cellulose fibers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:5414-20. [PMID: 15924470 DOI: 10.1021/la046842j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The adsorption of Congo red and tinopal CBS dyes on cellulose fibers was investigated using electronic absorption and fluorescence spectroscopies. Hydrogen bonds appear to be relevant for the dye-fiber interactions as indicated by the solvatochromism of Congo red in water, methanol, and dimethyl sulfoxide solutions, and when adsorbed on cellulose fibers. We also demonstrate that electrostatic interactions play an important role in the dye-medium interaction, through the analysis of absorption spectra of Congo red and fluorescence spectra of tinopal in aqueous solutions containing salt and in layer-by-layer nanostructured films with poly(allylamine hydrochloride). For instance, dye adsorption was enhanced when salt was added to the dipping solution, which was explained by the synergistic effect between the conformational changes of the cellulose and changes in the solvation layer around the cellulose chains and around dye molecules. On the basis of the fluorescence results for tinopal CBS, we inferred that dye aggregation is not relevant for adsorption on the fibers. In addition, fluorescence spectroscopy is proven very sensitive for studying the organization of dye molecules in layer-by-layer films, particularly those undergoing irreversible structural changes.
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Affiliation(s)
- Sahori B Yamaki
- Instituto de Fisica, Universidade de Sao Paulo, Sao Carlos, 13056-917 SP, Brazil
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13
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Cossiello RF, Kowalski E, Rodrigues PC, Akcelrud L, Bloise AC, deAzevedo ER, Bonagamba TJ, Atvars TDZ. Photoluminescence and Relaxation Processes in MEH−PPV. Macromolecules 2005. [DOI: 10.1021/ma048340i] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R. F. Cossiello
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
| | - E. Kowalski
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
| | - P. C. Rodrigues
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
| | - L. Akcelrud
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
| | - A. C. Bloise
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
| | - E. R. deAzevedo
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
| | - T. J. Bonagamba
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
| | - T. D. Z. Atvars
- Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13084-971 Campinas, SP, Brazil; Instituto Tecnológico para o Desenvolvimento LACTEC, Centro Politécnico, 81531-990 Curitiba, PR, Brazil; Departamento de Química, Universidade Federal do Paraná, Centro Politécnico, Caixa Postal 19081, 81531-990 Curitiba, PR, Brazil; and Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil
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Xu J, Weiss RG. Combinations of chiral and prochiral singlet radical-pairs in reaction cavities of polyethylene films. Control and analysis of radical tumbling and translation. Photochem Photobiol Sci 2005; 4:348-58. [PMID: 15803205 DOI: 10.1039/b419493d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The regio- and stereo-chemistries of combination products from chiral 1-naphthoxy/(R)-2-phenylpropanoyl and prochiral 1-naphthoxy/1-phenylethyl singlet radical-pairs (radical-pairs A and B, respectively) have been studied at different temperatures in polyethylene (PE) films with different crystallinities. The radical-pairs have been generated as intermediates along the photo-Fries reaction course of 1-naphthyl (R)-2-phenylpropanoate ((R)-1) and the photo-Claisen reaction course of 1-naphthyl (R)-1-phenylethyl ether ((R)-2). Radical-pair was produced directly upon lysis of the first excited singlet state of (R)-2 and indirectly after irradiation of (R)-1 and subsequent decarbonylation of the 2-phenylpropanoyl radical of radical-pair A. Comparison of the fates of the directly and indirectly formed radical-pairs provides detailed information about the nature of the reaction cavities within the polyethylene hosts and how the combinations of the radical-pairs are influenced by their initial locations within a cavity. The results, especially when taken with those from irradiations in n-alkanes, indicate that the cavities are "templated" by the (R)-1 and (R)-2 guest molecules and that the templated shapes are retained in some form for periods that are at least as long as the time required for decarbonylation of a 2-phenylpropanoyl radical. In addition, the enantiomeric excesses of the decarbonylated photoproducts from (R)-1(2, 2-(1-phenylethyl)-1-naphthol (2BN), and 4-(1-phenylethyl)-1-naphthol (4BN)) or 2BN and 4 BN from (R)-2 indicate different influences of temperature on translational and tumbling motions of the radicals of radical-pairs B within their polyethylene cages.
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Affiliation(s)
- Jinqi Xu
- Department of Chemistry, Georgetown University, Washington, DC 20057-1227, USA
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