| Journal Articles: 31 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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Gifts from Mother Earth—The Good, the Bad, and the Ugly Sabine Heinhorst and Gordon C. Cannon Recent articles from the journal Nature that deal with good, bad, and ugly gifts from Mother Earth are described. Heinhorst, Sabine; Cannon, Gordon C. J. Chem. Educ. 2006, 83, 196.
Biosynthesis |
Biotechnology |
Natural Products |
Nutrition |
Plant Chemistry |
Polymerization |
Proteins / Peptides
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Introduction to Photolithography: Preparation of Microscale Polymer Silhouettes Kimberly L. Berkowski, Kyle N. Plunkett, Qing Yu, and Jeffrey S. Moore In this experiment, a glass microscope slide acts as the microchip. Students can pattern this "microchip" by layering negative photoresist on the slide using a solution containing monomer, crosslinker, photoinitiator, and dye. The students then cover the photoresist with a photomask, which is the negative of a computer-generated image or text printed on transparency film, and illuminate it with UV light. The photoresist in the exposed area polymerizes into a polymer network with a shape dictated by the photomask. The versatility of this technique is exemplified by allowing each student to fabricate virtually any shape imaginable, including his or her silhouette. Berkowski, Kimberly L.; Plunkett, Kyle N.; Yu, Qing; Moore, Jeffrey S. J. Chem. Educ. 2005, 82, 1365.
Materials Science |
Applications of Chemistry |
Free Radicals |
Polymerization
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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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An Introduction to the Scientific Process: Preparation of Poly(vinyl acetate) Glue Robert G. Gilbert, Christopher M. Fellows, James McDonald, and Stuart W. Prescott Exercise to give students experience in scientific processes while introducing them to synthetic polymer colloids. Gilbert, Robert G.; Fellows, Christopher M.; McDonald, James; Prescott, Stuart W. J. Chem. Educ. 2001, 78, 1370.
Industrial Chemistry |
Noncovalent Interactions |
Surface Science |
Polymerization |
Applications of Chemistry |
Colloids
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A Polymer "Pollution Solution" Classroom Activity Terry L. Helser An active classroom project testing the solubility of foam packing nuggets is described. J. Chem. Educ. 1996, 73, 843.
Polymerization |
Alcohols
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Interfacial polymerizations: Microscale polymer laboratory experiments for undergraduate students. Lewis, Ronald G.; Choquette, Michael; Darden, Edward H.; Gilbert, Mark P.; Martinez, Douglas; Myhaver, Cindy; Schlichter, Karen; Woudenberg, Richard; Zawistowski, Keith. Experimental procedure for vinyl polymerizations modified to fit a microscale format. Lewis, Ronald G.; Choquette, Michael; Darden, Edward H.; Gilbert, Mark P.; Martinez, Douglas; Myhaver, Cindy; Schlichter, Karen; Woudenberg, Richard; Zawistowski, Keith. J. Chem. Educ. 1992, 69, A215.
Polymerization |
Microscale Lab |
Surface Science
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Free-radical polymerization of acrylamide Silversmith, Ernest F. A rapid and foolproof thermal polymerization. Silversmith, Ernest F. J. Chem. Educ. 1992, 69, 763.
Free Radicals |
Polymerization |
Reactions
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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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Synthesis of a phenol-formaldehyde thermosetting polymer Bedard, Y.; Riedl, B. Procedure that allows for the synthesis of a 50% aqueous solution of a prepolymer that, with the proper application of heat and pressure, can be used to bind together wood or other materials. Bedard, Y.; Riedl, B. J. Chem. Educ. 1990, 67, 977.
Synthesis |
Aldehydes / Ketones |
Phenols |
Polymerization
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A revision of a general chemistry experiment on an inorganic polymerization-condensation reaction Palma, Robert J., Sr.; Sargent, Ed An inorganic polymerization-condensation reaction modified for the general chemistry laboratory. Palma, Robert J., Sr.; Sargent, Ed J. Chem. Educ. 1990, 67, 614.
Polymerization
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Classroom demonstrations of polymer principles. Part II. Polymer formation Rodriguez, F.; Mathias, L. J.; Kroschwitz, J.; Carraher, C. E., Jr. Photopolymerization of acrylamide, bulk polymerization of methyl methacrylate, phenolic resins, and household adhesives and sealants. Rodriguez, F.; Mathias, L. J.; Kroschwitz, J.; Carraher, C. E., Jr. J. Chem. Educ. 1987, 64, 886.
Polymerization
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The gelation of polyvinyl alcohol with borax: A novel class participation experiment involving the preparation and properties of a "slime" Casassa,E.Z.; Sarquis, A.M.; Van Dyke, C.H. In this report, the authors describe a safe, interesting, and inexpensive class participation experiment, easily and quickly done by all the students in small to moderately large lecture halls. Casassa,E.Z.; Sarquis, A.M.; Van Dyke, C.H. J. Chem. Educ. 1986, 63, 57.
Alcohols |
Polymerization |
Physical Properties
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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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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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Polymer models Carraher, Charles E., Jr. A child's "pop-it-bead" set or polystyrene spheres or corks with holes drilled through them and connected with a shoestring can be used to illustrate some relationships of structure to polymer properties. Carraher, Charles E., Jr. J. Chem. Educ. 1970, 47, 581.
Molecular Properties / Structure |
Molecular Modeling |
Polymerization
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The effect of structure on chemical and physical properties of polymers Price, Charles C. Suggests using polymers to teach the effect of changes in structure on chemical reactivity, the effect of structure on physical properties, the role of catalysts, and the basic principles of a chain reaction mechanism. Price, Charles C. J. Chem. Educ. 1965, 42, 13.
Physical Properties |
Molecular Properties / Structure |
Polymerization |
Kinetics |
Reactions |
Catalysis |
Mechanisms of Reactions
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PolystyreneÂťA 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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Models for linear polymers Morgan, Paul W. Suggests models for addition and condensation polymers. Morgan, Paul W. J. Chem. Educ. 1960, 37, 206.
Molecular Modeling |
Molecular Properties / Structure |
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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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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