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Other Resources: 33 results
BIODEGRADABLE PLASTICS  Amperegrine57
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Polymerization |
Green Chemistry
Synthetic Macromolecules: Some Applied Organic Chemistry  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Materials Science |
Polymerization
Cross-Linking  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Materials Science |
Polymerization
Aerogels  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Materials Science
Synthetic Products  
Volume 03, issue 16 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Materials Science |
Consumer Chemistry
The Silicon Family  
Volume 03, issue 17 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Metalloids / Semimetals |
Materials Science
Aviation-Heavier-than-air Craft  
Volume 03, issue 23 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Materials Science |
Industrial Chemistry
Silicon, Boron, and Their Relatives  
Volume 04, issue 16 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Materials Science |
Geochemistry
Synthetic Chemistry  
Volume 05, issue 14 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Materials Science |
Consumer Chemistry
Silicon, Boron, and Their Compounds  
Volume 05, issue 16 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Metalloids / Semimetals |
Materials Science
Aerogels and Other Insulators  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Materials Science
Addition Polymers  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Polymerization
Condensation Polymers  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Polymerization
Copoly; A Tool for Understanding Copolymerization and Monomer Sequence Distribution of Copolymers  Massoud Miri, Juan A. Morales-Tirado
The study of the composition and monomer sequence distribution of binary copolymers is often complicated because of the many definitions of representative properties for the sequence distribution, the numerous calculations required, and occasionally the abstract treatment of the statistical processes describing the copolymer formation. Copoly resolves these issues with a user-friendly, highly visual interface to perform all calculations. Using Microsoft Excel and Word, Copoly is compatible with Windows and Mac OS. In Copoly the students enter up to five independent data parameters using the Data Input Window, and immediately see the results. To obtain diagrams for a copolymerization obeying a second-order Markovian process, the fraction of one monomer, A, and the reactivity ratios, rA, rB, rA´ and rB´ need to be entered; for a first-order Markovian process only the first three of these are required. For a Bernoullian- or zeroth-order Markovian process only A and rA are required. The results are displayed on separate sheets labeled: 1. Copolymerization Diagrams, 2. Dyads and Triads, 3. Sequence Length Distribution, 4. Simulated Copolymer Design, and 5. Summary.
Polymerization
The Origin of Nylon  Robert Hetue
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Polymerization
ChemPaths 104 F Jan 28  John W. Moore
Today in Chem 104: * Lecture: Polymers; Problem-Solving Session (email questions or topics to Prof. Moore jwmoore@chem.wisc.edu by 9am today) * No reading assigned for today. * Homework #2 due 11:55pm Today!
Polymerization
Slime and Goo  American Chemical Society
ACS Science for Kids activities exploring the properties of polymers.
Polymerization
Polymers-Characteristics of Materials  American Chemical Society
ACS Science for Kids explores the properties of polymers.
Polymerization
Solids  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solids
ChemPaths 104 W Jan 26  John W. Moore
Today in Chem 104: * Lecture: Organic Chemistry; Polymers * Reading: Kotz: Ch. 10, Sec. 5 Moore: Ch 12, Sec 5-6 * Homework #2 due 11:55pm F Jan 28. * Quiz 1 in 2nd Discussion section
Esters |
Polymerization
Polysaccharides  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Carbohydrates |
Polymerization
Molecular Models of Polymers Used in Sports Equipment  William F. Coleman
In keeping with the 2008 National Chemistry Week theme of Having a Ball with Chemistry, the Featured Molecules this month are a number of monomers and their associated polymers taken from a paper by Sandy Van Natta and John P. Williams on polymers used in making equipment for a variety of high-impact sports (1). The molecules provide students with an introduction to an important area of applied chemistry and also enable them to examine complex structures using the models they have seen applied to small molecules.It is certainly instructive for students to build small polymer fragments using molecular model kits. Holding a model of n-decane, for example, and twisting it in various ways, provides real insight into the multiplicity of conformations available to supermolecules of polyethylene. Computer-based 3-dimensional structure drawing and visualization programs make it possible to construct large oligomers of known polymers and to begin to explore structural properties of new systems. Two such programs, free for academic use, are DSVisualizer and ArgusLab (2). DSVisualizer includes a useful set of tools for building and viewing structures and a clean geometry option that applies a Dreiding-like force field. ArgusLab adds the ability to perform both molecular mechanics and semi-empirical geometry optimization and to display various molecular surfaces. Using ArgusLab, or a similar program, students can explore the relative energies of various conformations of the substances they have built electronically. Students who are being introduced to molecular modeling and the use of more sophisticated software can easily explore the effects of the modeling and convergence parameters on the stable structures that are found, and can begin to explore the difference between global and local minima on a molecular potential energy surface. Using the conformational search program in HyperChem 7.5 on a tetramer of vinyl chloride (terminated with H; of SRRS stereochemistry; only CCCC torsions varied), approximately half of the 500 structures examined fell within 6 kcal/mol of the lowest energy structure (3). This number would increase significantly if other torsion angles were included.The use of computational software allows us to introduce students in introductory chemistry to the idea of multiple conformations, which is so important in biochemistry and much of organic chemistry. In teaching ideas behind conformational stability care should be taken when attributing conformational stability solely to non-bonded repulsions between peripheral atoms on adjacent carbon atoms. Weinhold and co-workers have recently presented strong evidence that the stability of the staggered conformer of ethane relative to the eclipsed form arises from more favorable interactions of C-H sigma bonding orbitals on adjacent carbons (4). The multiplicity of such interactions could well be responsible for conformational stability in more complex systems. Any discussion of conformational stability should also introduce students to the ultimate conformational problem, the folding of proteins and to the Folding@home project (5).
Polymerization |
Applications of Chemistry
Bisphenol A  Rrizor
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Polymerization |
Green Chemistry
Solids, Liquids & Gases  American Chemical Society
ACS Science for Kids resources explore the chemical and physical properties of solids, liquids, and gases.
Applications of Chemistry |
Gases |
Solids |
Liquids
Soap and Detergent  American Chemical Society
ACS Science for Kids activities explore the properties of soap in aqueous solutions.
Lipids |
Polymerization |
Water / Water Chemistry |
Solutions / Solvents
Gold Layers  William F. Coleman
Four spheres surrounding a tetrahedral hole and six spheres surrounding an octahedral hole are highlighted and are partially transparent to show the holes.
Crystals / Crystallography |
Metals |
Solids |
Enrichment / Review Materials
Toys-ACS Science for Kids  American Chemical Society
ACS Science for Kids activities explore how chemistry can be used to make toys.
Gases |
Polymerization |
Water / Water Chemistry |
Physical Properties |
Lipids |
Reactions
Close Packing of Layers of Spheres  William F. Coleman
An animation of the close packing of layers of spheres. In this version, clicking on text links adds the second and third layers, with two options for the third layer. After both ways of adding the third layer have been explored the user has an option to go to a second version that has no text but rather allows the user to drag the layers over one another.
Crystals / Crystallography |
Molecular Properties / Structure |
Solids |
Enrichment / Review Materials
Lattice Energy  William F. Coleman
PowerPoint presentation covering various aspects of the concept of lattice energy at the introductory and intermediate inorganic chemistry level. The presentation will open directly in the browser if your system has been so configured.
Crystals / Crystallography |
Ionic Bonding |
Solids |
Enrichment / Review Materials
Radius Ratio  William F. Coleman
This is a set of animations that demonstrates properties of the spherical holes formed when uniform spheres are packed. Cubic, octahedral and tetrahedral packing arrangements may be examined without anything in the holes,and with the repective holes filled. The sizes of the various holes relative to the spheres being packed are shown, which can lead students into an exploration of the radius ratio concept. An example is given of computing the relative size of an octahedral hole.
Crystals / Crystallography |
Ionic Bonding |
Solids |
Enrichment / Review Materials
HCP Layers  William F. Coleman
An animation showing both the top and side views when three layers of spheres are arranged in a hexagonal close-packed array The user can control the animation through vcr controls.
Crystals / Crystallography |
Molecular Properties / Structure |
Solids |
Enrichment / Review Materials
Connected Chemistry  Mike Stieff
Connected Chemistry, a novel learning environment for teaching chemistry, is appropriate for use in both high school and undergraduate chemistry classrooms. Connected Chemistry comprises several molecular simulations designed to enable instructors to teach chemistry using the perspective of emergent phenomena. That is, it allows students to see observed macro-level chemical phenomena, like many other scientific phenomena, as resultant from the interactions of many individual agents on a micro-level. This perspective is especially appropriate to the study of chemistry where the interactions between multitudes of molecules on the atomic level give rise to the macro-level concepts that students study in the classroom. Connected Chemistry comprises molecular simulations embedded in the NetLogo modeling software (1). The collection contains several predesigned simulations of closed chemical systems to teach specific chemistry concepts. Currently, Connected Chemistry contains models for teaching Brønsted Lowry acid base theory, enzyme kinetics, radical polymerization, buffer chemistry, kinetics, chemical equilibrium, and crystallization. Instructors and students can individually tailor the predesigned simulations or generate new simulations as they are needed in the context of a particular lesson, classroom, or department.
Acids / Bases |
Gases |
Kinetics |
Nuclear / Radiochemistry |
pH |
Titration / Volumetric Analysis |
Polymerization |
Equilibrium |
Catalysis
Characteristics of Materials  American Chemical Society
What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Industrial Chemistry |
Physical Properties |
Reactions |
Consumer Chemistry |
Gases |
Carbohydrates |
Proteins / Peptides |
Crystals / Crystallography |
Water / Water Chemistry |
Plant Chemistry |
Dyes / Pigments |
Lipids |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography |
Magnetic Properties |
Metals |
Polymerization |
Solutions / Solvents |
Descriptive Chemistry |
Food Science