Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 0 |
| Since 2016 (last 10 years) | 1 |
| Since 2006 (last 20 years) | 2 |
Descriptor
| Molecular Structure | 2 |
| Plastics | 2 |
| Scientific Concepts | 2 |
| Undergraduate Study | 2 |
| Chemistry | 1 |
| College Science | 1 |
| Concept Teaching | 1 |
| Organic Chemistry | 1 |
| Science Experiments | 1 |
| Science Instruction | 1 |
| Science Laboratories | 1 |
| More ▼ | |
Author
| Bergbreiter, David E. | 2 |
| Fu, Hui | 1 |
| Harrell, Mary L. | 1 |
| Mijalis, Alexander J. | 1 |
Publication Type
| Journal Articles | 2 |
| Reports - Research | 2 |
Education Level
| High Schools | 1 |
| Higher Education | 1 |
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewed
Direct linkHarrell, 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
Bergbreiter, David E.; Mijalis, Alexander J.; Fu, Hui – Journal of Chemical Education, 2012
Reversible polymer dehydration and precipitation from water due to the unfavorable entropy of hydration is examined using a melting-point apparatus. The thermoresponsive lower critical solution temperature (LCST) behavior of poly(N-isopropylacrylamide) (PNIPAM) is responsible for these effects. An experiment is described that allows students to…
Descriptors: Chemistry, Plastics, Scientific Concepts, Science Instruction
