Results 111 to 120 of about 9,678 (243)
Optical spectroscopic studies of simple polyenes and complex xanthophylls
, 2007 The optical spectroscopic properties of four polyenes, decatetraene, dodecapentaene, tetradecahexaene and hexadecaheptaene, two carotenes, β-carotene and lycopene, and five xanthophylls, neoxanthin, violaxanthin, lutein, zeaxanthin, and β-cryptoxanthin ...
Galinato, Mary Grace I
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An Article Review: Charge-Transfer of Polyenes and Carotenes
Ibn Al-Haitham Journal for Pure and Applied SciencesWhen an electron moves from one atom or molecule to another, a charge-transfer complex is formed. The other objects must be able to accept these electrons, and one entity must have free electrons or a tendency to donate them.
Azhar Mohammed Hasan Wahhab +1 more
doaj +1 more source
Aqueous Dissolution and Recovery of Poly(Vinyl Alcohol) in Multilayer Film
ChemSusChem, Volume 19, Issue 10, 27 May 2026.Schematic of a water‐based recycling process for PVOH/PBAT‐PLA tri‐layer films, showing selective PVOH dissolution, process condition screening, and recovery of both polymer fractions. In this work, solvent‐based recycling was applied to a multilayer film of PBAT‐PLA and PVOH, where the dissolution conditions were optimized and the reusability of the ...
Pongkhun Prommart +6 more
wiley +1 more source
THE ELECTRONIC SPECROSCOPY OF LINEAAR POLYENES
, 1973 B. Hudson and B. Kohler, hem phys. Lett. 14 -, 299 (1972)Author Institution: Department of Chemistry, Stanford University; Department of Chemistry, Harvard UniversityA recent study of the highly resolved absorption and fluoresence spectra of ...
Hudson, Bruce S., Kohler, Bryan E.
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Radical Cyclization of Polyenes Initiated by Attack of Trialkyltin or Germanium Radical on an Ynone
, 2016 Radical Cyclization of Polyenes Initiated by Attack of Trialkyltin or Germanium Radical on an ...
Claude Spino (1643485) +1 more
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Achieving Near‐Complete Dechlorination of Poly(vinyl chloride) via Electrochemical Reduction
ChemSusChem, Volume 19, Issue 10, 27 May 2026.A one‐pot controlled‐voltage electrolysis achieved up to 97% dechlorination of poly(vinyl chloride) using common plasticizers as redox mediators. The liberated chloride ions were oxidized at the anode and utilized in a subsequent arene chlorination, offering a route for repurposing the chlorine from PVC.
Rahul Kant Jha +4 more
wiley +1 more source
TWO-PHOTON EXCITATION SPECTRA OF RETINYL POLYENES IN RANDOM GLASSES
, 1977 Author Institution: Department of Chemistry, Michigan State UniversityTwo-photon excitation spectra of several retinyl polyenes (all-trans retinol, all-trans retinal and all-trans anhydrovitamin A), and of diphenyloctatetraene in random glass matrices at
Leroi, G. E., Fang, Howard L.
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Sudden Polarization in Push-Pull Polyenes: A Model Exact Study
, 1990 In substituted polyenes, it has been conjectured that a large charge separation occurs when a rotation of $90^o$ is carried out about a double bond.
Albert, I. D. L. +3 more
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European Journal of Organic Chemistry, Volume 29, Issue 20, 27 May 2026.Bridging the gap. Beyond deck functionalization, the ethylene bridges of [2.2]paracyclophanes offer a largely unexploited reactivity landscape. This review showcases strategies to functionalize these bridges and leverage them to build novel cyclophane architectures.
Rongyu Sun +3 more
wiley +1 more source
Mass Spectrometry and Gas-phase Ion Chemistry of Dienes and Polyenes
, 2000 Kuck D, Mormann M. Mass Spectrometry and Gas-phase Ion Chemistry of Dienes and Polyenes. In: Rappoport Z, ed. The Chemistry of Dienes and Polyenes. Vol. 2. The Chemistry of Functional Groups.
Mormann, Michael +2 more
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