Synthesis and Characterization of Biobased Lactose Hydrogels: A Teaching Experiment on Sustainable Polymers and Waste Biomass Valorization (Record no. 45344)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 02956nam a22002057a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20240117160744.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 240116b ||||| |||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| ISSN | 0021-9584 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Buenaflor, Jeffrey Paz |
| 245 ## - TITLE STATEMENT | |
| Title | Synthesis and Characterization of Biobased Lactose Hydrogels: A Teaching Experiment on Sustainable Polymers and Waste Biomass Valorization |
| Remainder of title | (Journal Article) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication | Washington DC |
| Name of publisher | : American Chemical Society |
| Year of publication | , 2023 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 3981–3990p. |
| 440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE | |
| Title | Journal of Chemical Society |
| Volume number/sequential designation | , Volume 100: Number 10, October 2023 |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | ***______{For Hard Copy, Please visit Library.}________***<br/><br/> |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Abstract: Hydrogels are soft water-rich materials with physical properties that can be easily tuned by modifying their network structure. For instance, increasing or decreasing the cross-linking density has a profound effect on their water absorption capabilities and mechanical strength. These physical changes are showcased in a new experiment for organic chemistry and polymer science teaching laboratories based on the practical green synthesis and characterization of lactose methacrylate derived hydrogels. Lactose, a disaccharide derived from dairy waste byproducts, is functionalized with photoreactive methacrylate groups using methacrylic anhydride. The resulting mixture is subsequently photoirradiated to generate a cross-linked hydrogel. Structure–property relationships are assessed through comparative studies of three hydrogels of varying compositions. Compression tests and swelling studies in different aqueous environments offer a guided-inquiry experience. Students determine a relationship between cross-linking density and the physical properties of the hydrogels. This experiment highlights the valorization of biomass and multiple green chemistry principles including use of renewable feedstocks, atom economy, energy efficiency, waste prevention, and water as a benign solvent. Learning outcomes for an organic chemistry laboratory course include introduction to disaccharide and cross-linked polymer structures, observable physical change dependency with cross-linking density, and laboratory methods for evaluating water absorption capacities. Objectives aligned with a polymer course are incorporating mechanical compression instrumentation, mechanistic understanding of light-induced free radical polymerizations, and an appreciation for the application of hydrogels to commercial products. Overall, the translation of a current literature publication to an inexpensive and versatile experiment engages students in a modern example of sustainable polymer chemistry. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Laboratory Instruction| Organic Chemistry| Polymer Chemistry| Carbohydrates| Green Chemistry| Materials Science| Polymerization |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hillmyer, Marc A. | Wentzel, Michael T. | Wissinger, Jane E. |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://doi.org/10.1021/acs.jchemed.3c00195 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Periodicals |
| Lost status | Damaged status | Home library | Current library | Date acquired | Koha item type |
|---|---|---|---|---|---|
| RIE BPL Library | RIE BPL Library | 17.01.2024 | Periodicals |