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| Journal of Chemical Education | 8904 |
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Showing 7,231 to 7,245 of 8,904 results
Peer reviewedMcGrath, James E. – Journal of Chemical Education, 1981
The salient features and importance of chain-reaction polymerization are discussed, including such topics as the thermodynamics of polymerization, free-radical polymerization kinetics, radical polymerization processes, copolymers, and free-radical chain, anionic, cationic, coordination, and ring-opening polymerizations. (JN)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Science
Peer reviewedStille, J. K. – Journal of Chemical Education, 1981
Following a comparison of chain-growth and step-growth polymerization, focuses on the latter process by describing requirements for high molecular weight, step-growth polymerization kinetics, synthesis and molecular weight distribution of some linear step-growth polymers, and three-dimensional network step-growth polymers. (JN)
Descriptors: Chemical Bonding, Chemical Reactions, Chemistry, College Science
Peer reviewedWard, Thomas Carl – Journal of Chemical Education, 1981
Focuses on molecular weight and molecular weight distributions (MWD) and models for predicting MWD in a pedagogical way. In addition, instrumental methods used to characterize MWD are reviewed with emphasis on physical chemistry of each, including end-group determination, osmometry, light scattering, solution viscosity, fractionation, and…
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
Peer reviewedWilkes, G. L. – Journal of Chemical Education, 1981
Following a rationale for focusing on this topic, a molecular and nonmathematical approach is used to explain the basics of the flow (rheological) behavior of polymer melts, emphasizing the behavior of melts compared to that of solutions. (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Fluid Mechanics
Peer reviewedAklonis, J. J. – Journal of Chemical Education, 1981
Mechanical properties (stress-strain relationships) of polymers are reviewed, taking into account both time and temperature factors. Topics include modulus-temperature behavior of polymers, time dependence, time-temperature correspondence, and mechanical models. (JN)
Descriptors: Chemistry, College Science, Fluid Mechanics, Higher Education
Peer reviewedChapman, Kenneth; Fleming, Janice – Journal of Chemical Education, 1981
After describing a continuing education course in polymer chemistry, summarizes materials, methods, and results of an extensive evaluation of the course. Includes a discussion of benefits for participants and a list of 14 recommendations based on the evaluation. (JN)
Descriptors: Chemistry, College Science, Computer Assisted Instruction, Computer Oriented Programs
Peer reviewedGeil, Philip H.; Carr, Stephen H. – Journal of Chemical Education, 1981
Reviews and lists introductory- to advanced-level modules (units of written materials to support a one-hour lecture on a specific topic) for materials science and engineering. Modules are available with free photocopy reproduction rights through the "Journal of Education Modules in Materials Science and Engineering." (JN)
Descriptors: Chemistry, College Science, Continuing Education, Engineering Education
Peer reviewedMattice, Wayne L. – Journal of Chemical Education, 1981
Suggests the topic of macromolecules and synthetic polymers be included in undergraduate courses. Two macromolecular systems (polyethylene in a state unperturbated by long-range interactions and a polypeptide undergoing a helix-coil transition) are described which are suitable for inclusion in the statistical mechanics section of physical…
Descriptors: Biochemistry, Chemical Reactions, Chemistry, College Science
Peer reviewedMcGrath, J. E. – Journal of Chemical Education, 1981
Reviews the characteristics, reactions, importance, and commercial applications of block and graft copolymers. (JN)
Descriptors: Adhesives, Chemical Industry, Chemical Reactions, Chemistry
Peer reviewedCarraher, Charles E., Jr. – Journal of Chemical Education, 1981
Reactions utilized to incorporate a metal-containing moiety into a polymer chain (addition, condensation, and coordination) are considered, emphasizing that these reactions also apply to smaller molecules. (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Coordination Compounds
Peer reviewedBazuin, C. G.; Eisenberg, A. – Journal of Chemical Education, 1981
Demonstrates how the incorporation of relatively low amounts of ionic material into nonionic polymers affects the structure and properties of these polymers. The extent to which properties are altered depends on dielectric constant of the backbone, position and type of ionic group, counterion type, ion concentration, and degree of neutralization.…
Descriptors: Chemical Bonding, Chemical Reactions, Chemistry, College Science
Peer reviewedOlabisi, Olagoke – Journal of Chemical Education, 1981
Discusses various aspects of polymeric mixtures, mixtures of structurally different homopolymers, copolymers, terpolymers, and the like. Defines concepts of polymer-polymer miscibility from practical and theoretical viewpoints, and ways of predicting such miscibility. (JN)
Descriptors: Adhesives, Chemical Bonding, Chemical Industry, Chemical Reactions
Peer reviewedCassidy, Patrick E. – Journal of Chemical Education, 1981
Describes geothermal, aerospace, and undersea applications of polymeric materials, focusing on properties needed by and forces acting on the polymers. (JN)
Descriptors: Aerospace Industry, Chemical Bonding, Chemical Reactions, Chemistry
Peer reviewedGriffith, James R. – Journal of Chemical Education, 1981
The properties of natural and synthetic polymeric "coatings" are reviewed, including examples and uses of such coatings as cellulose nitrate lacquers (for automobile paints), polyethylene, and others. (JN)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
Peer reviewedBuzzard, Gene P. – Journal of Chemical Education, 1981
Summarizes the philosophy of team teaching and the use of this method in teaching CHEM Study. Includes discussions of scheduling, class time for study, and the role of this course in the school's total chemistry program. (JN)
Descriptors: Chemistry, Course Descriptions, Flexible Scheduling, Program Evaluation


