| Journal Articles: 27 results |
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Construction of a Polyaniline Nanofiber Gas Sensor Shabnam Virji, Bruce H. Weiller, Jiaxing Huang, Richard Blair, Heather Shepherd, Tanya Faltens, Philip C. Haussmann, Richard B. Kaner, and Sarah H. Tolbert
The objectives of this lab are to synthesize different diameter polyaniline nanofibers and compare them as sensor materials. Its advantages include simplicity and low cost, making it suitable for both high school and college students, particularly in departments with modest means.
Virji, Shabnam; Weiller, Bruce H.; Huang, Jiaxing; Blair, Richard; Shepherd, Heather; Faltens, Tanya; Haussmann, Philip C.; Kaner, Richard B.; Tolbert, Sarah H. J. Chem. Educ. 2008, 85, 1102.
Acids / Bases |
Aromatic Compounds |
Conductivity |
Hydrogen Bonding |
Oxidation / Reduction |
Oxidation State |
pH |
Polymerization |
Synthesis
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Preparation of Conducting Polymers by Electrochemical Methods and Demonstration of a Polymer Battery Hiromasa Goto, Hiroyuki Yoneyama, Fumihiro Togashi, Reina Ohta, Akitsu Tsujimoto, Eiji Kita, and Ken-ichi Ohshima
The electrochemical polymerization of aniline and pyrrole, and demonstrations of electrochromism and the polymer battery effect, are presented as demonstrations suitable for high school and introductory chemistry at the university level.
Goto, Hiromasa; Yoneyama, Hiroyuki; Togashi, Fumihiro; Ohta, Reina; Tsujimoto, Akitsu; Kita, Eiji; Ohshima, Ken-ichi. J. Chem. Educ. 2008, 85, 1067.
Aromatic Compounds |
Conductivity |
Electrochemistry |
Materials Science |
Oxidation / Reduction |
Polymerization
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Thermal Analysis of Plastics Teresa D'Amico, Craig J. Donahue, and Elizabeth A. Rais
Students interpret previously recorded scans generated by differential scanning calorimetry and thermal gravimetric analysis to investigate a polypropylene dog bone, a polyethylene terephthalate pop bottle, the plastics in automobile head- and taillights, fishing line and a tea bag, and the rubber tread of an automobile tire.
D'Amico, Teresa; Donahue, Craig J.; Rais, Elizabeth A. J. Chem. Educ. 2008, 85, 404.
Materials Science |
Polymerization |
Thermal Analysis
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Molecular Handshake: Recognition through Weak Noncovalent Interactions Parvathi S. Murthy
This article traces the development of our thinking about molecular recognition through noncovalent interactions, highlights their salient features, and suggests ways for comprehensive education on this important concept.
Murthy, Parvathi S. J. Chem. Educ. 2006, 83, 1010.
Applications of Chemistry |
Biosignaling |
Membranes |
Molecular Recognition |
Noncovalent Interactions |
Chromatography |
Molecular Properties / Structure |
Polymerization |
Reactions
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From "Greasy Chemistry" to "Macromolecule": Thoughts on the Historical Development of the Concept of a Macromolecule Pedro J. Bernal
This paper presents a narrative about the historical development of the concept of a macromolecule. It does so to illustrate how the history of science might be used as a pedagogical tool to teach science, particularly to non-majors.
Bernal, Pedro J. J. Chem. Educ. 2006, 83, 870.
Colloids |
Nonmajor Courses |
Polymerization |
Molecular Properties / Structure |
Physical Properties
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Teaching Chemistry Laboratory Skills in Industrial Contexts Julianne M. Braun and Carol White
A recently completed project has produced a compilation of 40 laboratory experiments presented within the contexts of five major industries. This article provides a summary of these experiments, along with a discussion of ancillary materials.
Braun, Julianne M.; White, Carol. J. Chem. Educ. 2006, 83, 353.
Applications of Chemistry |
Industrial Chemistry |
Metals |
Polymerization |
Water / Water Chemistry
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Thermal Degradation and Identification of Heat-Sensitive Polymers. Applications of Pyrolysis and Distillation and Instrumental Methods of Analysis Stuart C. Clough and Emma W. Goldman
An experiment for undergraduate teaching laboratories is described that involves the identification of samples of polystyrene and poly(methyl methacrylate). This involves the thermal degradation of the polymers (a destructive distillation) into their respective monomers. The monomers are then identified using infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and gas chromatographymass spectrometry.
Clough, Stuart C.; Goldman, Emma W. J. Chem. Educ. 2005, 82, 1378.
Nonmajor Courses |
IR Spectroscopy |
Mass Spectrometry |
NMR Spectroscopy |
Polymerization
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Electropolymerized Conducting Polymer as Actuator and Sensor Device: An Undergraduate Electrochemical Laboratory Experiment María T. Cortés and Juan C. Moreno
A trilayer formed by two conducting polymer films sandwiched around an adhesive polymer layer works as actuator and sensor simultaneously. This device can be bent up to 180 and it can be used as a sensing device of physical chemistry parameters such as cell temperature and electrolyte concentration. In this article, it is shown in a didactic way how to electrochemically synthesize ClO4-doped polypyrrole (PPy) films, how to fabricate a trilayer device, and how to evaluate its actuating and sensing capabilities. The required materials are simple and a complicated setup is not necessary.
Cortés, María T.; Moreno, Juan C. J. Chem. Educ. 2005, 82, 1372.
Electrochemistry |
Materials Science |
Undergraduate Research |
Polymerization |
Applications of Chemistry
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Chemical Recycling of Pop Bottles: The Synthesis of Dibenzyl Terephthalate from the Plastic Polyethylene Terephthalate Craig J. Donahue, Jennifer A. Exline, and Cynthia Warner
Procedure in which students depolymerize a common plastic (PET from 2-L pop bottles) under mild conditions using nontoxic chemicals to produce monomer building blocks.
Donahue, Craig J.; Exline, Jennifer A.; Warner, Cynthia. J. Chem. Educ. 2003, 80, 79.
Industrial Chemistry |
Synthesis |
Aromatic Compounds |
Polymerization
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Not So Late Night Chemistry with USD Koppang, Miles D.; Webb, Karl M.; Srinivasan, Rekha R.
Through the program, college students enhance their knowledge and expertise on a chemical topic and gain experience in scientific presentations. They also serve as role models to the high school students who can relate to college students more easily than the chemistry faculty members and their high school students.
Koppang, Miles D.; Webb, Karl M.; Srinivasan, Rekha R. J. Chem. Educ. 1994, 71, 929.
Forensic Chemistry |
Polymerization |
Electrochemistry |
Isotopes |
Acids / Bases
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Chemical Magic: Polymers from a Nonexistent Monomer Seymour, Raymond B.; Kauffman, George B.
Synthesis, properties, and applications of polyvinyl alcohol and related polymers.
Seymour, Raymond B.; Kauffman, George B. J. Chem. Educ. 1994, 71, 582.
Polymerization |
Alcohols
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A safe and novel polymerization of styrene Flynn, Brendan R.
A safer way to demonstrate the synthesis of addition polymers.
Flynn, Brendan R. J. Chem. Educ. 1991, 68, 1038.
Polymerization |
Synthesis |
Consumer Chemistry
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Chemistry of polymers, proteins, and nucleic acids: A short course on macromolecules for secondary schools Lulav, Ilan; Samuel, David
Topics considered in a macromolecular chemistry unit for advanced high school chemistry students.
Lulav, Ilan; Samuel, David J. Chem. Educ. 1985, 62, 1075.
Polymerization |
Proteins / Peptides
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Synthesis and a simple molecular weight determination of polystyrene Armstrong, Daniel W.; Marx, John N.; Kyle, Don; Alak, Ala
Procedure for synthesizing styrene and determining its molecular weight using thin layer chromatography.
Armstrong, Daniel W.; Marx, John N.; Kyle, Don; Alak, Ala J. Chem. Educ. 1985, 62, 705.
Synthesis |
Polymerization |
Chromatography
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Nylon 6 - A simple, safe synthesis of a tough commercial polymer Mathias, Lon J.; Vaidya, Rajeev A.; Canterberry, J. B.
An improved procedure for the synthesis of Nylon 6 that is easier, safer, and gives a product with impressive strength.
Mathias, Lon J.; Vaidya, Rajeev A.; Canterberry, J. B. J. Chem. Educ. 1984, 61, 805.
Polymerization |
Synthesis
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Polymer photophysics: A negative photoresist Bramwell, Fitzgerald B.; Zadjura, Richard E.; Stemp, Leo; Fahrenholtz, Susan R.; Flowers, John M.
A negative photoresist is formulated that consists of a solution of a photosensitive film-forming polymer or resin that is used to create the negative image of an object on a glass slide.
Bramwell, Fitzgerald B.; Zadjura, Richard E.; Stemp, Leo; Fahrenholtz, Susan R.; Flowers, John M. J. Chem. Educ. 1979, 56, 541.
Photochemistry |
Polymerization
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Petroleum chemistry Kolb, Doris; Kolb, Kenneth E.
The history of petroleum chemistry.
Kolb, Doris; Kolb, Kenneth E. J. Chem. Educ. 1979, 56, 465.
Natural Products |
Geochemistry |
Applications of Chemistry |
Industrial Chemistry |
Catalysis |
Polymerization
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Ethylene: The organic chemical industry's most important building block Fernelius, Condrad W.; Wittcoff, Harold; Varnerin, Robert E.
The sources, chemistry, and industrial uses of ethylene.
Fernelius, Condrad W.; Wittcoff, Harold; Varnerin, Robert E. J. Chem. Educ. 1979, 56, 385.
Alkenes |
Industrial Chemistry |
Applications of Chemistry |
Polymerization
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The Preparation of polyurethane foam: A lecture demonstration Dirreen, Glen E.; Shakhashiri, Bassam Z.
A polyurethane foam is produced by forming a polyurethane polymer concurrently with a gas evolution process.
Dirreen, Glen E.; Shakhashiri, Bassam Z. J. Chem. Educ. 1977, 54, 431.
Reactions |
Polymerization
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Emulsion polymerization and film formation of dispersed polymeric particles Ceska, Gary W.
This project illustrates the principles of emulsion polymerization, copolymerization, glass transition temperature (Tg), and the effect of Tg on polymer properties.
Ceska, Gary W. J. Chem. Educ. 1973, 50, 767.
Conferences |
Professional Development |
Polymerization
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PolystyreneA multistep synthesis Wilen, S. H.
Suggestions for research to accompany a previously published article.
Wilen, S. H. J. Chem. Educ. 1963, 40, A463.
Undergraduate Research |
Reactions |
Polymerization |
Synthesis
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Letters to the editor Lambert, Frank L.
The author calls attention to polymer models.
Lambert, Frank L. J. Chem. Educ. 1960, 37, 490.
Molecular Modeling |
Molecular Properties / Structure |
Polymerization
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Letters to the editor Morgan, Paul W.; Kwolek, Stephanie L.
Offers modifications to "The Nylon Rope Trick."
Morgan, Paul W.; Kwolek, Stephanie L. J. Chem. Educ. 1959, 36, 530.
Polymerization
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The nylon rope trick: Demonstration of condensation polymerization Morgan, Paul W.; Kwolek, Stephanie L.
Describes the chemistry and variations of the classic polymerization demonstration.
Morgan, Paul W.; Kwolek, Stephanie L. J. Chem. Educ. 1959, 36, 182.
Polymerization
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Laboratory preparation of cellophane Miller, Meredith
Offers a simplified procedure suitable for the preparation of cellophane for small-scale classroom demonstration purposes.
Miller, Meredith J. Chem. Educ. 1958, 35, 517.
Synthesis |
Polymerization
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Polymerization of ethylene at atmospheric pressure: A demonstration using a "Ziegler" type catalyst Zilkha, Albert; Calderon, Nissim; Rabani, Joseph; Frankel, Max
A simple experiment on the polymerization of ethylene at atmospheric pressure is described using a "Ziegler" type catalyst prepared from amyl lithium and titanium tetrachloride.
Zilkha, Albert; Calderon, Nissim; Rabani, Joseph; Frankel, Max J. Chem. Educ. 1958, 35, 344.
Polymerization |
Reactions |
Catalysis |
Alkenes
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Linear polymerization and synthetic fibers Moncrieff, Robert W.
Examines early research in polymers, the synthesis of polyesters and polyamides, the polymerization of hydrocarbons, and condensation and addition polymerization.
Moncrieff, Robert W. J. Chem. Educ. 1954, 31, 233.
Polymerization
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