The mutagenic potential of glycidol and 7 alkyl glycidyl ethers having straight alkyl chains of 2, 4, 6, 8, 10, 12, and 14 carbon atoms were examined in a battery of in vitro assays. The battery consisted of the Salmonella/mammalian microsome assay, the L5178Y mouse lymphoma assay, and unscheduled DNA synthesis using W138 cells. The mutagenic potential of the compounds ranged from strongly mutagenic to non-mutagenic; glycidol exhibited the greatest activity. All the ethers through C-4 showed a definite response whole the C-8 or higher ethers showed very weak or no responses. Dose-response curves were obtained by all 3 assays for those compounds that exhibited mutagenic activity. The sensitivity of each assay is discussed, as are the effects of the liver microsome systems used for metabolic activation.
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http://dx.doi.org/10.1016/0165-1218(81)90002-1 | DOI Listing |
Int J Biol Macromol
January 2025
Istanbul Technical University, Faculty of Science and Letters, Department of Chemistry, Soft Materials Research Laboratory, 34469, Maslak, Istanbul, Turkey. Electronic address:
Controllable macromolecular architecture formation via polysaccharide integrated ternary copolymerization was explored in the design of amino-functionalized n-alkyl methacrylate ester-based biohybrids. Ternary poly(dimethylaminoethyl methacrylate-co-glycidyl methacrylate-co-hydroxypropyl methacrylate)/sodium-alginate, PDGH/ALG, hybrids were designed using anionic polysaccharide through in-situ radical polymerization. An insight into the effect of ALG on physicochemical structure of ternary hybrids, particularly the interactions between polymeric chains, was created.
View Article and Find Full Text PDFPolymers (Basel)
December 2024
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, South 2nd Ring Road Middle Section, Xi'an 710064, China.
Studying the mechanisms and effects of rejuvenators on SBS-modified bitumen is crucial for repairing degraded SBS and recycling aged SBS-modified bitumen (ASMB), thereby contributing to the sustainable development of bitumen pavements. This research examines the roles of mono-epoxy Alkyl (C12-C14) glycidyl ether (AGE) and di-epoxy 1,6-Hexanediol diglycidyl ether (HDE) under the catalysis of N,N-dimethyl benzyl amine (BDMA) in repairing degraded SBS chains. Aromatic oil (ORSMB)-, AGE-aromatic oil (ARSMB)-, and HDE-aromatic oil (HRSMB)-rejuvenated bitumen are analyzed for their chemical structures, physical properties, and rheological properties.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Materials Science and Engineering, Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China. Electronic address:
Moisture exposure during polyester processing can lead to degradation, resulting in the formation of carboxyl and hydroxyl end-groups. To preserve mechanical properties, thorough drying and the use of chain extenders like epoxy acrylates and isocyanates during extrusion are crucial for maintaining or enhancing molecular weight through in-situ reactions. Our study introduced epoxidized cardanol oleate (ECD-OA), containing epoxy and long-chain alkyl groups, as a potential chain extender, and compared its effectiveness with commercially available epoxidized cardanol glycidyl ether (cardolite NC514).
View Article and Find Full Text PDFRSC Adv
October 2024
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University Chengdu 610500 China
Organometallics
July 2024
Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States.
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