Publication Date
In 2025 | 0 |
Since 2024 | 0 |
Since 2021 (last 5 years) | 0 |
Since 2016 (last 10 years) | 3 |
Since 2006 (last 20 years) | 8 |
Descriptor
Molecular Structure | 10 |
Plastics | 10 |
Spectroscopy | 10 |
Science Instruction | 7 |
Chemistry | 6 |
College Science | 6 |
Scientific Concepts | 6 |
Science Experiments | 5 |
Teaching Methods | 5 |
Undergraduate Study | 5 |
Organic Chemistry | 4 |
More ▼ |
Author
Publication Type
Journal Articles | 10 |
Reports - Descriptive | 5 |
Reports - Research | 3 |
Information Analyses | 1 |
Reports - Evaluative | 1 |
Education Level
Higher Education | 8 |
Postsecondary Education | 1 |
Audience
Teachers | 2 |
Practitioners | 1 |
Researchers | 1 |
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Harrell, Mary L.; Bergbreiter, David E. – Journal of Chemical Education, 2017
The use of [superscript 1]H NMR spectroscopy to analyze the number-average molecular weight of a methoxy poly(ethylene glycol) (MPEG) and an acetate derivative of this MPEG is described. These analyses illustrate NMR principles associated with the chemical shift differences of protons in different environments, NMR integration, and the effect of…
Descriptors: Spectroscopy, Organic Chemistry, Scientific Concepts, Concept Teaching
Wnek, Gary E. – Journal of Chemical Education, 2017
Small organic molecules offer a rich opportunity to discuss the interplay of chemical structure with properties such as the melting point and phenomena such as glass formation and can form the basis of fundamental considerations of structure-property relationships in macromolecules. Of particular importance are thermal transitions, specifically…
Descriptors: Organic Chemistry, Molecular Structure, Teaching Methods, Plastics
Dickson-Karn, Nicole M. – Journal of Chemical Education, 2017
A multi-instrument approach has been applied to the efficient identification of polymers in an upper-division undergraduate instrumental analysis laboratory course. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) is used in conjunction with differential scanning calorimetry (DSC) to identify 18 polymer samples and…
Descriptors: Laboratory Experiments, Undergraduate Study, Molecular Structure, Qualitative Research
Knoerzer, Timm A.; Balaich, Gary J.; Miller, Hannah A.; Iacono, Scott T. – Journal of Chemical Education, 2014
Poly(phenylene vinylene) (PPV) represents an important class of conjugated, conducting polymers that have been readily exploited in the preparation of organic electronic materials. In this experiment, students prepare a PPV polymer via a facile multistep synthetic sequence with robust spectroscopic evaluation of synthetic intermediates and the…
Descriptors: Science Instruction, Science Laboratories, Plastics, Scientific Concepts
Izunobi, Josephat U.; Higginbotham, Clement L. – Journal of Chemical Education, 2011
The measurement and analysis of molecular weight and molecular weight distribution remain matters of fundamental importance for the characterization and physical properties of polymers. Gel permeation chromatography (GPC) is the most routinely used method for the molecular weight determination of polymers whereas matrix-assisted laser…
Descriptors: Plastics, Spectroscopy, Chemistry, Scientific Concepts
Pappenfus, Ted M.; Hermanson, David L.; Kohl, Stuart G.; Melby, Jacob H.; Thoma, Laura M.; Carpenter, Nancy E.; Filho, Demetrio A. da Silva; Bredas, Jean-Luc – Journal of Chemical Education, 2010
A series of experiments for undergraduate laboratory courses (e.g., organic, polymer, inorganic) have been developed. These experiments focus on understanding the regiochemistry of the conducting polymer poly(3-hexylthiophene) (P3HT). The substitution patterns in P3HTs control their conformational features, which, in turn, dictates the [pi]…
Descriptors: Plastics, Chemistry, Science Instruction, College Science
Yaung, Jing-Fun; Chen, Yueh-Huey – Journal of Chemical Education, 2009
A novel undergraduate chemistry experiment involving superabsorbent polymers commonly used in diapers and other personal care products is described. Students observe the removal of divalent transition-metal ions from aqueous solutions by the polymers. With the procedures provided, students are able to color the superabsorbent polymers with metal…
Descriptors: Plastics, Chemistry, Undergraduate Study, Science Instruction
D'Amico, Teresa; Donahue, Craig J.; Rais, Elizabeth A. – Journal of Chemical Education, 2008
This lab experiment illustrates the use of differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) in the measurement of polymer properties. A total of seven exercises are described. These are dry exercises: students interpret previously recorded scans. They do not perform the experiments. DSC was used to determine the…
Descriptors: Plastics, Chemistry, Science Experiments, Laboratory Experiments
Clough, Stuart C.; Goldman, Emma W. – Journal of Chemical Education, 2005
A study demonstrates the thermal degradation of two heat-sensitive polymers, namely, polystyrene and poly (methyl methacrylate). The experiment described in the study introduces undergraduate students to polymer structure as well as the application of spectroscopic techniques to the solution of structural problems.
Descriptors: Undergraduate Students, Plastics, Spectroscopy, Molecular Structure

Smith, Charles G.; And Others – Analytical Chemistry, 1989
Reviews techniques for the characterization and analysis of synthetic polymers, copolymers, and blends. Includes techniques for structure determination, separation, and quantitation of additives and residual monomers; determination of molecular weight; and the study of thermal properties including degradation mechanisms. (MVL)
Descriptors: Chemical Analysis, Chemical Industry, Chemistry, Chromatography