Results 101 to 110 of about 1,110,496 (257)

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

A mass spectrometric study of secondary organic aerosols formed from the photooxidation of anthropogenic and biogenic precursors in a reaction chamber [PDF]

Atmospheric Chemistry and Physics, 2006
An Aerodyne Aerosol Mass Spectrometer (AMS) has been utilised to provide on-line measurements of the mass spectral signatures and mass size distributions of the oxidation products resulting from irradiating 1,3,5-trimethylbenzene (1,3,5-TMB) and &alpha ...
M. R. Alfarra, M. R. Alfarra, D. Paulsen, D. Paulsen, M. Gysel, M. Gysel, A. A. Garforth, J. Dommen, A. S. H. Prévôt, D. R. Worsnop, U. Baltensperger, H. Coe   +11 more
doaj  

Kinetics of anionic polymerization of β‐myrcene in hydrocarbon solvents

Polymer International, EarlyView.
The process of anionic polymerization of β‐myrcene in hydrocarbon solvents was examined by kinetic studies and quantum chemical calculations. Abstract The kinetics of anionic polymerization of β‐myrcene initiated by sec‐butyllithium were examined in saturated and unsaturated hydrocarbon solvents, i.e. cyclohexane, cyclohexene, 4‐vinylcyclohexene and dl‐
Alexander Rösler, Steffen M Weidner, Tillmann Klamroth, Axel HE Müller, Helmut Schlaad   +4 more
wiley   +1 more source

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

The Chemical Record, EarlyView.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim, Solpa Lee, Anmo J. Kim, Cong Wang, Yongwoo Jang   +4 more
wiley   +1 more source

Direct measurement of particle formation and growth from the oxidation of biogenic emissions [PDF]

Atmospheric Chemistry and Physics, 2006
A new facility has been developed to investigate the formation of new particles from the oxidation of volatile organic compounds emitted from vegetation.
T. M. VanReken, J. P. Greenberg, P. C. Harley, A. B. Guenther, J. N. Smith   +4 more
doaj  

The oxygen-independent metabolism of cyclic monoterpenes in Castellaniella defragrans 65Phen [PDF]

, 2014
BACKGROUND: The facultatively anaerobic betaproteobacterium Castellaniella defragrans 65Phen utilizes acyclic, monocyclic and bicyclic monoterpenes as sole carbon source under oxic as well as anoxic conditions.
Becher, D., Disch, E., Harder, J., Huettel, B., Markert, S., Petasch, J., Reinhardt, R., Schweder, T.   +7 more
core   +2 more sources

Olefin Polymerizations Oriented by Rational Designs of Group‐13 Compounds

The Chemical Record, EarlyView.
In coordination olefin polymerization chemistry, boron and aluminum compounds play important roles in both catalyst components and monomers. This personal account introduces our recent progress on the development of catalyst systems featured by the design of group‐13 counteranions, as well as the application of boronic acid‐crosslinked polyolefins to ...
Ryo Tanaka, Yu Zou
wiley   +1 more source

Essential Oil Yield Pattern and Antibacterial and Insecticidal Activities of Trachyspermum ammi and Myristica fragrans

Scientifica, 2016
Two Indian spices, Trachyspermum ammi and Myristica fragrans, were studied for their essential oil (EO) yielding pattern, insecticidal activity, antibacterial activity, and composition. The essential oils (EOs) of T.
Rajgovind Soni, Gaurav Sharma, Nakuleshwar Dut Jasuja   +2 more
doaj   +1 more source

Identification and Quantification of Volatile Organic Compounds and Bioaerosols in the Conservation Processes of Guanche Mummies

Archaeometry, EarlyView.
ABSTRACT The Guanche mummies, ancient inhabitants of the Canary Islands, represent a significant part of the historical heritage preserved at the Museum of Nature and Archaeology (MUNA) in Tenerife, Spain. These mummies, subjected to artificial conservation practices, are of great interest to conservators seeking to understand their mummification ...
Benigno Sánchez, Maria Cristina Canela, Maria Garcia Morales, Juan Gilaranz, Murilo de Oliveira Souza, Ruth Mª. Rufino García   +5 more
wiley   +1 more source

Essential Oils of Five Baccharis Species: Investigations on the Chemical Composition and Biological Activities

Molecules, 2018
This paper provides a comparative account of the essential oil chemical composition and biological activities of five Brazilian species of Baccharis (Asteraceae), namely B. microdonta, B. pauciflosculosa, B. punctulata, B.
Jane M. Budel, Mei Wang, Vijayasankar Raman, Jianping Zhao, Shabana I. Khan, Junaid U. Rehman, Natascha Techen, Babu Tekwani, Luciane M. Monteiro, Gustavo Heiden, Inês J. M. Takeda, Paulo V. Farago, Ikhlas A. Khan   +12 more
doaj   +1 more source