Academic literature on the topic 'Butadiene molecule'

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Journal articles on the topic "Butadiene molecule"

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Cooke, Ilsa R., Ci Xue, P. Bryan Changala, et al. "Detection of Interstellar E-1-cyano-1,3-butadiene in GOTHAM Observations of TMC-1." Astrophysical Journal 948, no. 2 (2023): 133. http://dx.doi.org/10.3847/1538-4357/acc584.

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Abstract We report the detection of the lowest-energy conformer of E-1-cyano-1,3-butadiene (E-1- C 4 H 5 CN ), a linear isomer of pyridine, using the fourth data reduction of the GBT Observations of TMC-1: Hunting for Aromatic Molecules (GOTHAM) deep spectral survey toward TMC-1 with the 100 m Green Bank Telescope. We perform velocity stacking and matched-filter analyses using Markov chain Monte Carlo simulations and find evidence for the presence of this molecule at the 5.1σ level. We derive a total column density of 3.8 − 0.9 + 1.0 × 10 10 cm−2, which is predominantly found toward two of the
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Collin, Guy J., Hélène Deslauriers, and George R. De Maré. "La photochimie du cis-penta-1,3-diène, en phase gazeuse à 184,9 et 147,0 nm." Canadian Journal of Chemistry 69, no. 8 (1991): 1245–51. http://dx.doi.org/10.1139/v91-186.

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We have studied the 184.9 and 147.0 nm photochemistry of gaseous cw-1,3-pentadiene: the main products observed at 184.9 nm are trans-1,3-pentadiene and 1,3-cyclopentadiene. The formation of radicals also occurs as shown through the use of DI as a radical scavenger. Cyclopentadiene is the likely product of successive eliminations of two hydrogen atoms from the photoexcited molecule after rearrangement of the pentadienyl radical to the cyclopentenyl structure: Ф0(cyclo-C5H6) ≈ 0.25. Elimination of a methyl radical (Ф0 ≈ 0.50) also occurs, with formation of CH2=CHCH=ĊH* and, in a lower yield, CH2
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Benn, R., P. W. Jolly, T. Joswig, R. Mynott, and K. P. Schick. "Intermediates in the Palladium-Catalysed Reactions of 1,3-Dienes, Part 5 [1] Butadiene Complexes of Nickel, Palladium and Platinum." Zeitschrift für Naturforschung B 41, no. 6 (1986): 680–91. http://dx.doi.org/10.1515/znb-1986-0604.

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A series of [M(R2PC2H4PR2)(butadiene)] complexes of Ni, Pd and Pt has been prepared and their structures investigated NMR-spectroscopically. The nickel and palladium complexes, irre­spective of the substituents at phosphorus, contain a fluxional η2-bonded butadiene molecule. In the case of platinum the bonding mode is ligand dependent: an η2-arrangement is observed where R is tert-butyl or cyclohexyl while when R is isopropyl the butadiene adopts an η1, η1-arrangement to give a platinacyclopentene derivative.
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Gomes, Ligia R., John N. Low, Nathasha R. de L. Correira, et al. "Crystal structures and Hirshfeld surface analysis of four 1,4-bis(methoxyphenyl)-2,3-diazabuta-1,3-dienes: comparisons of the intermolecular interactions in related compounds." Zeitschrift für Kristallographie - Crystalline Materials 234, no. 1 (2019): 59–71. http://dx.doi.org/10.1515/zkri-2018-2113.

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Abstract The crystal structures of four azines, namely 1-3-bis(4-methoxyphenyl)-2,3-diaza-1,4-butadiene, 1, 1,3-bis(2,3-dimethoxyphenyl)-2,3-diaza-1,4-butadiene, 2, 1,3-bis(2-hydroxy-3-methoxyphenyl)-2,3-diaza-1,4-butadiene, 3, and 1,3-bis(2-hydroxy-4-methoxyphenyl)-2,3-diaza-1,4-butadiene, 4, are reported. Molecules of 3 and 4, and both independent molecules of 2, Mol A and Mol B, possess inversion centers. The central C=N–N=C units in each molecule is planar with an (E,E) conformation. The intermolecular interactions found in the four compounds are C–H···O, C–H–N, C–H---π and π---π interacti
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Fernández, José A., Alfredo Ortiz de Zárate, María N. Sánchez Rayo, and Fernando Castaño. "Direct Measurements of Removal Rates of CHF(X˜1A′(0,1,0)) by Simple Alkenes." Laser Chemistry 12, no. 1-2 (1992): 43–52. http://dx.doi.org/10.1155/lc.12.43.

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Direct measurements of the rate constants for collisional removal of CHF(X˜1A′(0,1,0)) by argon (Ar), ethylene (C2H4), propene (C3H6), 1-butene (1-C4H8), iso-butene (i-C4H8), 1,3-butadiene (C4H6), are reported. CHF(X˜1A′(0,1,0)) was prepared by IRMPD of precursor CH2F2. Fluence independence removal rate constants by Ar, ethylene and propene are: 0.0045, 2.70 and 2.46 × 10−11 cm3 molecule−1 s−1, faster than the rates for the vibrational ground state. 1,3-butadiene was measured at a fluence of 42Jcm−2, yielding a value of 0.81 × 10−11 cm3 molecule−1 s−1. Iso-butene has fluence dependence removal
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Artem, Oleinikov, Mebel Alexander, and Azyazov Valeriy. "The reaction of 2-naphthyl with 1,3-butadiene: a theoretical study." MATEC Web of Conferences 209 (2018): 00027. http://dx.doi.org/10.1051/matecconf/201820900027.

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This work is devoted to a theoretical study of the 2-naphthyl + 1,3-butadiene reaction aimed at understanding the hydrogen-loss mechanism in the reactions of n-naphthyl (n=1,2) with 1,3-butadiene. All intermediates and transition states, their vibrational frequencies and zero-point vibrational energies, and the potential energy diagram were calculated at the G3(MP2,CC)//B3LYP/6-311G** theoretical level. The estimate of the reaction rate constant gives the order of 10-13 cm3 molecule-1 s-1 at temperatures below 500 K.
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Polansky, Oskar E., and Walter M. F. Fabian. "Pars Orbital Method for Excited States." Zeitschrift für Naturforschung A 44, no. 9 (1989): 773–79. http://dx.doi.org/10.1515/zna-1989-0901.

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Abstract Based on a projection operator formalism the pars orbital method is reformulated for the general case that both the molecule M as well as the reference molecule L-are described by a CI-expansion of the wave function. Some numerical examples in which the method is used for the interpretation of the ultraviolet spectra of simple organic molecules (butadiene, aniline, benzonitrile, o-, m-, and p-aminobenzonitrile, 2,5-diamino-p-benzoquinone) in terms of the various states (ground as well as excited) of the respective reference molecules are discussed in some detail to illustrate the scop
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Bacchi, A., A. Brillante, D. Crocco, et al. "Exploration of the polymorph landscape for 1,1,4,4-tetraphenyl-1,3-butadiene." CrystEngComm 16, no. 35 (2014): 8205–13. http://dx.doi.org/10.1039/c4ce01046a.

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The solid state behaviour of 1,1,4,4-tetraphenyl-1,3-butadiene (TPB), a well-known blue luminescent molecule, is presented. The crystal structures of four polymorphs and one solvate form are discussed and the experimental occurrence of the four polymorphs is rationalized.
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Kawski, A., B. Kukliński, and A. Kubicki. "Isomerization of Diphenyl Polyenes. Part VII. The effect of Daylight and Direct Irradiation on the Photoisomerization of Ph-(CH = CH)n-Ph for n = 2, 3, 4 in Poly(vinyl alcohol) Films." Zeitschrift für Naturforschung A 48, no. 12 (1993): 1177–81. http://dx.doi.org/10.1515/zna-1993-1205.

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Abstract Photoisomerization of 1,4-diphenyl-1,3-butadiene (DPB), 1,6-diphenyl-1,3,5-hexatriene (DPH) and 1,8-diphenyl-1,3,5,7-octatetraene (DPO) in poly(vinyl alcohol) (PVA) films was studied unter daylight and direct irradiation. The most efficient photoisomerization occurs in the DPB molecule, the smallest among the compounds investigated. For the greatest, DPO, molecule no distinct isomerization was observed in daylight and only a temperature effect was noted. Therefore, the DPO molecule in the PVA film heated to 423 K may serve as a fluorescence standard.
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Lozynskyi, Oleg, Cécile Barthes, Arnaud Rives, Valérie Maraval, Zoia Voitenko, and Remi Chauvin. "En route to a dianilinyl-substituted carbo-cyclohexadiene with promising electrical properties." French-Ukrainian Journal of Chemistry 3, no. 1 (2015): 46–52. http://dx.doi.org/10.17721/fujcv3i1p46-52.

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The macro-aromatic carbo-benzene core para-disubstituted by 4-anilinyl groups is known to be an efficient single-molecule conductor, exhibiting a conductance of 106 nS measured by the scanning tunneling microscopy-break junction technique. The linear carbo-butadiene analogue bearing the same anilinyl substituents was found to be less efficient, with a conductance of 2.7 nS. The reason of this difference could be elucidated through the study of the charge transport properties of a cyclically locked carbo-butadiene core in a carbo-cyclohexadiene derivative. In this paper, advances in the synthes
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Dissertations / Theses on the topic "Butadiene molecule"

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Лопаткін, Юрій Михайлович, Юрий Михайлович Лопаткин, Yurii Mykhailovych Lopatkin, Г. Г. Милашенко та П. О. Кондратенко. "Молекулярний транзистор на основі заміщених дифенілу". Thesis, Сумский государственный университет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/39685.

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Сучасні комп΄ютери набули стрімкого розвитку. З часом елементна база буде мініатюризована до розмірів молекули. Робота направлена на вивчення переносу електрона через молекулу, закріплену між дво- ма електродами. Використовувати слід стабільні молекули, які мають дві конформації. Дослідження проводились з молекулою дифенілу з різними замісниками.
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Wilson, Joanne Patricia. "The molecular toxicology of butadiene." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287826.

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Adhikari, Rameshwar. "Correlations between molecular architecture, morphology and deformation behaviour of styrene, butadiene block copolymers and blends." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=964298635.

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SCHIO, LAURENT. "Utilisation des complexes butadiene fer tricarbonyle pour l'etude du controle stereochimique a longue distance dans les molecules de type macrolide." Rennes 1, 1990. http://www.theses.fr/1990REN10083.

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Ce travail concerne l'utilisation du motif fer tricarbonyle pour induire, en serie macrocyclique, une diastereoselectivite par controle stereochimique a tres longue distance. La reaction d'alkylation est la reaction modele que nous avons etudiee. La synthese des modeles macrocycliques retenus a permis la mise au point d'une methode generale d'acces a des complexes presentant une chaine laterale saturee et fonctionnalisee en position terminale. Cette procedure utilisant la reaction d'hydrogenation ionique a ete appliquee a la synthese enantiocontrolee d'intermediaires clefs pour la preparation
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Citroni, Margherita. "Chemical reactivity of molecular systems under very high pressure and laser irradiation." Paris 6, 2005. http://www.theses.fr/2005PA066048.

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Amram, Bruno. "Etude, par dichroisme infrarouge, de l'orientation de reseaux d'elastomeres etires." Paris 6, 1988. http://www.theses.fr/1988PA066023.

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Le dichroisme ir permet d'obtenir sans marquage et sans hypothese sur l'axe de chaine le second moment de la fonction d'orientation de reseaux de polyisoprenes etires uniaxialement. La relaxation de la phase amorphe est predominante dans le caoutchouc naturel
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VALLEE, PAULE YOLANDE. "Obtention par thermolyse eclair et etude physicochimique de molecules conjuguees reactives d'interet synthetique ou astrophysique." Caen, 1988. http://www.theses.fr/1988CAEN2033.

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Linstadt, Roscoe T. H. "A. Studies In The Allylic Substitution Chemistry Of Copper Hydride B. Stereoselective Silylcupration Of Conjugated Alkynes In Micellar Media C. Palladium-Catalyzed Synthesis Of 1,3-Butadienes and [3]-[6]Dendralenes D. Synthesis Of Small Molecule Underwater Adhesives Inspired By Mussels." Thesis, University of California, Santa Barbara, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10257794.

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<p> Copper hydride (CuH) has been shown to enable a number of selective 1,2- and 1,4-reductions when complexed with the appropriate ligand, yet the allylic substitution chemistry of CuH has been much less studied. This dissertation describes the further study of CuH to perform sequential reductions on Morita-Baylis-Hillman (MBH) adducts. Specifically: I) Selectivity in the SN2&rsquo; reduction of MBH adducts was shown to be highly dependant on the nature of the ligand used. II) The reaction of MBH alcohols was shown to involve an initial dehydrogenative silylation with PMHS, where both the oli
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Morland, Catherine. "Etude de la contrainte et de l'orientation dans les reseaux d'elastomeres diformes." Paris 6, 1987. http://www.theses.fr/1987PA066057.

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La contrainte appliquee et l'orientation sont mesurees simultanement durant une traction uniaxiale de reseaux polybutadiene et de copolymeres sbr par fluorometrie. Le modele d'anneaux glissants, qui considere que les enchevetrements forment des anneaux virtuels et mobiles entre les chaines, est utilise pour interpreter les resultats. Caracterisation de la topologie du reseau par le modele thermique de flory et erman
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Schmit, Carlo. "Propriétés des milieux polymères : cinétiques de réticulation, gonflement, polymères étoilés : approche R.M.N." Grenoble 1, 1988. http://www.theses.fr/1988GRE10067.

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Ce travail contribue a l'exploration de la structure statistique et des proprietes dynamiques des milieux polymeres par relaxation magnetique nucleaire. Des traitements numeriques de la fonction de relaxation de chaines denses de polyethylene etde polybutadiene, a des taux de reticulation variables, permettent d'etudier la cinetique de vulcanisation "in situ" en fonction de differents parametres physiques et chimiques
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Books on the topic "Butadiene molecule"

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Occupational Medicine and Hygiene Laboratory. 1,3-Butadiene in air: Laboratory method using molecular sieve diffusion samplers, thermal desorption and gas chromatography. Health and Safety Executive, 1989.

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Occupational Medicine and Hygiene Laboratory. 1,3-Butadiene in air: Laboratory method using pumped molecular sieve adsorbent tubes,thermal desorption and gas chromatography. Health and Safety Executive, 1986.

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Eland, John H. D., and Raimund Feifel. Conjugated and aromatic molecules. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198788980.003.0006.

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In the vast majority of conjugated and aromatic molecules, the outermost occupied orbitals are either of π‎ character or non-bonding lone pairs belonging to heteroatoms. These are the orbitals from which double ionisation gives rise to most of the distinct bands that can be discerned in their spectra. Double photoionisation spectra of ethylene, butadiene, pyrrole, furan, thiophene, benzene, hexafluorobenzene, toluene, pyridine, pyrazine, pyrimidine, pyridazine, naphthalene, azulene, quinoline, biphenyl, TDME, iron pentacarbonyl, ferrocene, and TMPPD are presented with analysis where possible.
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Roman, Eve, Alexandra Smith, and Lorelei Mucci. Leukemias. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190676827.003.0028.

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Leukemias are a diverse group of acute and chronic haematological malignancies, that account for 2% to 3% of cancers globally. Recent advances in molecular biology and therapy have transformed the landscape for several leukemia subtypes changing some, but by no means all, from rapidly fatal diseases to treatable conditions with a good prognosis. In general, however, this progress has not been matched by new aetiological insights. Albeit accounting for a relatively small proportion, genetic predisposition syndromes such as neurofibromatosis, Li-Fraumeni and Trisomy 21, have the biggest impact i
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1,3-Butadiene in Air: Laboratory Method Using Molecular Sieve Diffusion Samplers, Thermal Desorption and Gas Chromatography (MDHS) (Methods for the Determination of Hazardous Substances). Health and Safety Executive (HSE), 1989.

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Book chapters on the topic "Butadiene molecule"

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Demaison, J. "431 C4H6 1,3-Butadiene." In Asymmetric Top Molecules. Part 2. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10400-8_179.

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Wlodarczak, G. "88 C4H2 1,3-Butadiyne." In Linear Polyatomic Molecules. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-44926-3_90.

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Demaison, J. "542 C5H8 3-Methyl-1,2-butadiene." In Asymmetric Top Molecules. Part 2. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10400-8_290.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "81 C4H2 1,3-Butadiyne." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_82.

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Wlodarczak, G. "87 C4HF 1-Fluoro-1,3-butadiyne." In Linear Polyatomic Molecules. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-44926-3_89.

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Wlodarczak, G. "94 C5HN 1-Isocyano-1,3-butadiyne." In Linear Polyatomic Molecules. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-44926-3_96.

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Demaison, J. "406 C4H4F2 (E,Z)-1,4-Difluoro-1,3-butadiene." In Asymmetric Top Molecules. Part 2. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10400-8_154.

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Demaison, J. "435 C4H6ClF 1,3-Butadiene - chlorine fluoride (1/1)." In Asymmetric Top Molecules. Part 2. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10400-8_183.

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Demaison, J. "388 C4H2Ar 1,3-Butadiyne - argon (1/1)." In Asymmetric Top Molecules. Part 2. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10400-8_136.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "83 C4H4F2 (1E,3Z)-1,4-Difluoro-1,3-butadiene." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_84.

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Conference papers on the topic "Butadiene molecule"

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Agarwal, D. C., and Helena Alves. "Applications of Alloy 59 (UNS N06059) and Alloy 31 (UNS N08031) in Mitigating Corrosion Problems in CPI and Petrochemical Industries." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07186.

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Abstract CPI &amp; Petrochemicals constitute a huge, complex and highly diverse industry which forms an integral part of the US economy. It covers converting various raw materials (about 10 of them), the most important ones being organic in nature such as oil, natural gas and coal whilst others are inorganic in nature such as ores / elements taken from the earth (phosphates, sulfur, potash etc), air (nitrogen, oxygen) and water (chlorine, hydrogen). Conversion of these base materials produce about 300 different “intermediates” which then go into production of about 30.000 plus consumer product
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Jiang, Ningjing, Cristina Puzzarini, Luca Dore, et al. "SPECTROSCOPIC AND COMPUTATIONAL CHARACTERIZATION OF 2-AZA-1,3-BUTADIENE, A MOLECULE OF ASTROCHEMICAL SIGNIFICANCE." In 2022 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2022. http://dx.doi.org/10.15278/isms.2022.td05.

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Dorman, P., Robert McMahon, R. Woods та ін. "THE Z-1-CYANO-1,3-BUTADIENE (C5H5N) MILLIMETER-WAVE ROTATIONAL SPECTRUM OF THE GROUND VIBRATIONAL STATE AND FIRST TWO EXCITED VIBRATIONAL STATES (ν19 AND ν27): A MOLECULE OF ASTROCHEMICAL IMPORTANCE". У 2020 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.rj07.

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Changala, Bryan, Michael McCarthy, Barney Ellison, et al. "STRUCTURE AND TUNNELING DYNAMICS OF gauche-1,3-BUTADIENE." In 72nd International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2017. http://dx.doi.org/10.15278/isms.2017.tk07.

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Ульянова, Д. М., and В. А. Розенцвет. "SYNTHESIS OF FILM-FORMING LOW MOLECULAR WEIGHT POLYMERS OF BUTADIENE USING CATIONIC INITIATOR SYSTEMS BASED ON ETHYLALUMINUM DICHLORIDE." In Инновации и «зелёные» технологии : IV Всероссийская научно-практическая конференция. Crossref, 2024. http://dx.doi.org/10.34830/sounb-conf.2023.26.98.035.

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Катионная полимеризация бутадиена в присутствии инициирующей системы этилалюминийдихлорид (AlEtCl2) – трет-бутилхлорид (ТБХ) является эффективным методом синтеза полностью растворимых низкомолекулярных полимеров бутадиена при технологически удобной температуре процесса 20 °С. Установлено, что изменение соотношения ТБХ к AlEtCl2 в реакционной массе является удобным способом регулирования молекулярных характеристик полибутадиена. Синтезированные низкомолекулярные полимеры бутадиена характеризуются высокими пленкообразующими свойствами и являются перспективными компонентами при производстве лакок
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Martin-Drumel, Marie-Aline, Michael McCarthy, John Stanton, et al. "HIGH RESOLUTION FAR-INFRARED SPECTROSCOPY OF TRANS- AND GAUCHE-BUTADIENE." In 74th International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2019. http://dx.doi.org/10.15278/isms.2019.tj01.

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Thawoos, Shameemah, and Arthur Cavallotti, Suits. "LOW TEMPERATURE REACTION KINETICS OF CN(v=1) WITH BUTADIENE ISOMERS." In 2023 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2023. http://dx.doi.org/10.15278/isms.2023.6966.

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Kwon, Eilhann, and Marco J. Castaldi. "Polycyclic Aromatic Hydrocarbon (PAH) Formation in Thermal Degradation of Styrene Butadiene Copolymer (SBR)." In 14th Annual North American Waste-to-Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/nawtec14-3188.

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This study has been initiated to quantify the release of the Polycyclic Aromatic Hydrocarbon (PAH) species from Styrene Butadiene Copolymer (SBR) during gasification. The identification and quantification has been determined experimentally using Gas Chromatography/Mass Spectroscopy (GC/MS) coupled to a Thermo-Gravimetric Analysis (TGA) unit. SBR samples were pyrolysed in a TGA unit in a N2 atmosphere. The identities and absolute concentrations of over 32 major and minor species have been established, including a large number of aromatics, substituted aromatics, and PAHs. The light hydrocarbon
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Chen, Fengqin, and Jianguo Zheng. "Operation parameters optimization of butadiene extraction distillation based on neural network." In 2011 IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS). IEEE, 2011. http://dx.doi.org/10.1109/nems.2011.6017562.

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Martin-Drumel, Marie-Aline, John Stanton, Barney Ellison, et al. "RESOLVING A LONG-STANDING AMBIGUITY: THE NON-PLANARITY OF gauche-1,3-BUTADIENE REVEALED BY MICROWAVE SPECTROSCOPY." In 71st International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2016. http://dx.doi.org/10.15278/isms.2016.mi11.

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