Results 1 to 10 of about 1,552 (162)

Multi-Channel MEMS-FAIMS Gas Sensor for VOCs Detection [PDF]

Micromachines, 2023
Aimed at the problems of a large equipment size, long time and high price of environmental VOC gas detection, the FAIMS-VOC gas sensor was designed and prepared according to the principle that the ionization energy of the common VOC gas is less than 10.6
Zhujie Zhao, Cheng Lei, Ting Liang, Junna Zhang, Yuqiao Liu, Abdul Ghaffar, Jijun Xiong   +6 more
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Characterization of an isobutylene epoxide hydrolase (IbcK) from the isobutylene-catabolizing bacterium Mycolicibacterium sp. ELW1 [PDF]

Applied and Environmental Microbiology
Isobutylene (IB) is produced on a large scale by the petrochemical industry and is metabolized by the aerobic alkene-metabolizing bacterium Mycolicibacterium sp. ELW1. The initial metabolite of IB catabolism by this bacterium is proposed to be 2-methyl-1,
Nicholas W. Faulkner, John B. Joyce, Christy Smith, Paul Swartz, Robert B. Rose, Eric S. Miller, Michael R. Hyman   +6 more
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Plasmonic Ni-doped W18O49 with dual active sites drives efficient methanol dehydration to dimethyl ether [PDF]

Nature Communications
Photocatalytic methanol dehydration to dimethyl ether (DME) offers a sustainable alternative to energy-intensive thermocatalysis, yet its practical application remains constrained by low efficiency. Herein, we designed Ni-doped plasmonic W18O49 nanowires
Dehua Tian, Yinlan Liang, Zhaoke Zheng, Liang Mao, Xiaoyan Cai, Yizhen Chen, Xiangxian Wang, Xiaolei Liu, Juan Li, Zeyan Wang, Can Xue, Baojun Li, Zaizhu Lou   +12 more
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CFD-Simulation of Isobutane Dehydrogenation for a Fluidized Bed Reactor

ChemEngineering, 2022
In the present study, a mathematical model of the isobutane dehydrogenation process for a laboratory reactor with a diameter of 2.8 cm and a height of 70 cm was created using CFD methods.
Sergei A. Solovev, Olga V. Soloveva, Giyjaz E. Bekmukhamedov, Svetlana R. Egorova, Alexander A. Lamberov   +4 more
doaj   +1 more source

Photobromination selectivities of isobutylene-p-methyl styrene random copolymer irradiated with visible light

Hecheng xiangjiao gongye, 2022
Several types of n-hexane and cyclohexane with different purities were analyzed by gas chromatograph, and the photobromination reactions of the major branched isomer compositions of n-he-xane including 2-methylpentane, 3-methylpentane and ...
MENG Wei-juan; QIU Ying-xin; MA Wen-chao; WEI Zi-bo; ZHANG Lei
doaj   +1 more source

Aspects of the Synthesis of Poly(styrene-block-isobutylene-block-styrene) by TiCl₄-Co-initiated Cationic Polymerization in Open Conditions

Macromol, 2021
The cationic polymerization of isobutylene and its block copolymerization with styrene using DiCumCl/TiCl4/2,6-lutidine initiating system has been studied in open conditions.
Miraslau I. Makarevich, Pavel A. Nikishau, Ivan A. Berezianko, Tatiana V. Glushkova, Maria A. Rezvova, Evgeny A. Ovcharenko, Giyjaz E. Bekmukhamedov, Dmitry G. Yakhvarov, Sergei V. Kostjuk   +8 more
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Preparation and characterization of hydroxyl-terminated telechelic polyisobutene

Hecheng xiangjiao gongye, 2022
Polyisobutene with double living chain terminal was prepared by controlled living cationic polymerization using 5-tert-butyl-1,3-bis(2-chloroisopropyl) benzene/titanium tetrachloride initiator system, polyisobutene with allyl chloride terminal structure ...
YU Zhao-peng; ZHAO Zhen; WEI Xu-ling; ZHANG Hao; LIU Ruo-fan; GONG Guang-bi; WU Yi-bo
doaj   +1 more source

Para-tert-butylcumene synthesis

Тонкие химические технологии, 2021
Objectives. This study describes a new approach to obtain para-tert-butylcumene by alkylation of cumene with isobutylene in the presence of catalysts, such as Amberlyst 36 Dry, KU-2-8, aluminum chloride, and tert-butyl alcohol and concentrated sulfuric ...
E. M. Yarkina, E. A. Kurganova, A. S. Frolov, G. N. Koshel, T. N. Nesterova, V. A. Shakun, S. A. Spiridonov   +6 more
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Complexes of aluminum, iron(III), and gallium(III) chlorides with ethers in synthesis of highly reactive polyisobutylene

Журнал Белорусского государственного университета: Химия, 2020
In this review, the latest achievements in the field of cationic polymerization of isobutylene catalyzed by the complexes of conventional Lewis acids with ethers are presented.
Sergei V. Kostjuk
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Research progress of polyisobutylene-based elastomer

Hecheng xiangjiao gongye, 2021
The latest progress in the synthesis, processing and application of polyisobutylene and isobutylene based elastomers copolymerized with isoprene, p-methylstyrene, styrene and tetrahydrofuran were reviewed in 51 references.
REN Ji-wen1, YAN Peng-hua2, ZHANG Hua-qiang2
doaj   +1 more source