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Journal articles on the topic 'Cationic polymerisation'

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1

Williams, M., N. J. W. Penfold, and S. P. Armes. "Cationic and reactive primary amine-stabilised nanoparticles via RAFT aqueous dispersion polymerisation." Polymer Chemistry 7, no. 2 (2016): 384–93. http://dx.doi.org/10.1039/c5py01577d.

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Synthesis of cationic reactive primary amine-functionalized diblock copolymer nano-objects via polymerisation-induced self-assembly (PISA) using a RAFT aqueous dispersion polymerisation formulation is reported.
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2

Tran, Anh Dung, Thomas Koch, Robert Liska, and Patrick Knaack. "Radical-induced cationic frontal polymerisation for prepreg technology." Monatshefte für Chemie - Chemical Monthly 152, no. 1 (2021): 151–65. http://dx.doi.org/10.1007/s00706-020-02726-y.

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AbstractIn this study, a new type of prepreg technology has been established using a dual curing system consisting of 1,6-hexanediol diacrylate (HDDA) and frontally polymerisable components based on the epoxide resin. The study of the polymerisation of HDDA revealed (tert-butylcyclohexyl)peroxydicarbonate (BCPC) as the most suitable radical thermal initiator. The presence of BCPC resulted in a fast radical polymerisation of HDDA and no cationic ring-opening reaction of the epoxy, which was observed by monitoring the double bond and epoxy group conversion in real time-NIR rheology measurement.
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3

Irawan, Yan, Ika Juliana, and Emil Budianto. "Synthesis of palm oil based polymeric ester through cationic addition polymerisation method." Malaysian Journal of Fundamental and Applied Sciences 17, no. 1 (2021): 16–19. http://dx.doi.org/10.11113/mjfas.v17n1.1524.

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In this study, the synthesis of palm oil-based polymeric ester for application as a polymeric surfactant was carried out by a cationic addition polymerisation method through two steps. The initial step is a synthesis of fatty acid methyl esters oleate (FAMEO) through esterification reaction between oleic acid and methanol. The optimum conditions of the esterification reaction were carried out at a temperature of 70–80oC for 4 hours with the addition of 1wt% sulfuric acid as a catalyst. The molar ratio between oleic acid and methanol was 1:3. FAMEO was analysed using GCMS to determine the methy
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4

Plesch, Peter H. "Pseudo-cationic polymerisation after 24 years." Makromolekulare Chemie. Macromolecular Symposia 13-14, no. 1 (1988): 375–87. http://dx.doi.org/10.1002/masy.19880130126.

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5

Decker, Christian, Danielle Decker, Trieu Nguyen Thi Viet, and Hien Le Xuan. "Photoinitiated cationic polymerisation of multifunctional systems." Macromolecular Symposia 102, no. 1 (1996): 63–71. http://dx.doi.org/10.1002/masy.19961020110.

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6

Grace, James L., Johnny X. Huang, Soon-Ee Cheah, et al. "Antibacterial low molecular weight cationic polymers: dissecting the contribution of hydrophobicity, chain length and charge to activity." RSC Advances 6, no. 19 (2016): 15469–77. http://dx.doi.org/10.1039/c5ra24361k.

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7

Gomes, Clara S. B., Alejandro F. G. Ribeiro, Anabela C. Fernandes та ін. "Reactivity of cationic α-diimine cyclopentadienyl nickel complexes towards AlEt2Cl: synthesis, characterisation and ethylene polymerisation". Catalysis Science & Technology 7, № 14 (2017): 3128–42. http://dx.doi.org/10.1039/c7cy00875a.

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8

Williams, M., N. J. W. Penfold, J. R. Lovett, et al. "Bespoke cationic nano-objects via RAFT aqueous dispersion polymerisation." Polymer Chemistry 7, no. 23 (2016): 3864–73. http://dx.doi.org/10.1039/c6py00696e.

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9

Camerlynck, Stephanie, Peter A. G. Cormack, and David C. Sherrington. "Synthesis of branched polystyrenes via cationic polymerisation." European Polymer Journal 42, no. 12 (2006): 3286–93. http://dx.doi.org/10.1016/j.eurpolymj.2006.08.019.

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10

Nuyken, Oskar, Stephen D. Pask, Axel Vischer, and Michael Walter. "Telechelics from methyl propene via cationic polymerisation." Makromolekulare Chemie. Macromolecular Symposia 3, no. 1 (1986): 129–52. http://dx.doi.org/10.1002/masy.19860030111.

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11

Wu, Kangda, Yibo Wu, Shan Huang, et al. "Synthesis and characterization of hydroxyl-terminated butadiene-end-capped polyisobutylene and its use as a diol for polyurethane preparation." RSC Advances 10, no. 16 (2020): 9601–9. http://dx.doi.org/10.1039/d0ra00132e.

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12

Prasher, Alka, Huamin Hu, Joji Tanaka, David A. Nicewicz, and Wei You. "Alcohol mediated degenerate chain transfer controlled cationic polymerisation of para-alkoxystyrene." Polymer Chemistry 10, no. 30 (2019): 4126–33. http://dx.doi.org/10.1039/c9py00480g.

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In this report we demonstrate methanol as an effective degenerative chain transfer agent to control the cationic polymerisation (initiated by triflic acid) of electron rich p-alkoxy-styrenes, such as p-methoxystyrene (p-MOS).
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13

Kim, Jungyeon, Christopher Waldron, Beatrice Cattoz та C. Remzi Becer. "An ε-caprolactone-derived 2-oxazoline inimer for the synthesis of graft copolymers". Polymer Chemistry 11, № 42 (2020): 6847–52. http://dx.doi.org/10.1039/d0py01092h.

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An inimer-like structure that consists of a 2-oxazoline ring for cationic ring opening polymerisation and a typical alpha-bromo ester initiator for Cu-RDRP has been synthesised using ε-Caprolactone as the starting material.
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14

Ernawati, Lusi, Ratna Balgis, Takashi Ogi, Kikuo Okuyama, and Tomonori Takada. "Role of Acetone in the Formation of Highly Dispersed Cationic Polystyrene Nanoparticles." Chemical and Process Engineering 38, no. 1 (2017): 5–18. http://dx.doi.org/10.1515/cpe-2017-0002.

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Abstract A modified emulsion polymerisation synthesis route for preparing highly dispersed cationic polystyrene (PS) nanoparticles is reported. The combined use of 2,2′-azobis[2-(2-imidazolin- 2-yl)propane] di-hydrochloride (VA-044) as the initiator and acetone/water as the solvent medium afforded successful synthesis of cationic PS particles as small as 31 nm in diameter. A formation mechanism for the preparation of PS nanoparticles was proposed, whereby the occurrence of rapid acetone diffusion caused spontaneous rupture of emulsion droplets into smaller droplets. Additionally, acetone helpe
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15

Bukvic, Alexander J., Dana Georgiana Crivoi, Hollie G. Garwood та ін. "Tolerant to air σ-alkane complexes by surface modification of single crystalline solid-state molecular organometallics using vapour-phase cationic polymerisation: SMOM@polymer". Chemical Communications 56, № 31 (2020): 4328–31. http://dx.doi.org/10.1039/d0cc01140a.

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Surface-initiated cationic polymerisation of ethylvinylether at single-crystals of the σ-alkane complex [Rh(Cy<sub>2</sub>PCH<sub>2</sub>CH<sub>2</sub>PCy<sub>2</sub>)(NBA)][BAr<sup>F</sup><sub>4</sub>] imparts air-tolerance to this highly reactive complex.
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16

Li, Kebin, Javier Alejandro Hernández-Castro, Keith Morton, and Teodor Veres. "Facile Fabrication of Flexible Polymeric Membranes with Micro and Nano Apertures over Large Areas." Polymers 14, no. 19 (2022): 4228. http://dx.doi.org/10.3390/polym14194228.

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Freestanding, flexible and open through-hole polymeric micro- and nanostructured membranes were successfully fabricated over large areas (&gt;16 cm2) via solvent removal of sacrificial scaffolds filled with polymer resin by spontaneous capillary flow. Most of the polymeric membranes were obtained through a rapid UV curing processes via cationic or free radical UV polymerisation. Free standing microstructured membranes were fabricated across a range of curable polymer materials, including: EBECRYL3708 (radical UV polymerisation), CUVR1534 (cationic UV polymerisation) UV lacquer, fluorinated per
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17

Wilson, D. J., and A. D. Jenkins. "Photo-initiated cationic polymerisation for use in paper preservation." Polymer Bulletin 19, no. 5 (1988): 461–67. http://dx.doi.org/10.1007/bf00263915.

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18

Cook, Alexander B., Raoul Peltier, Matthias Hartlieb, et al. "Cationic and hydrolysable branched polymers by RAFT for complexation and controlled release of dsRNA." Polymer Chemistry 9, no. 29 (2018): 4025–35. http://dx.doi.org/10.1039/c8py00804c.

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19

Rokicki, Gabriel, and Thinh X. Nguyen. "Epoxy Resin - Cyclic Carbonate Oligomer Compositions Cured with BF3·Et2O." Engineering Plastics 4, no. 1 (1996): 147823919600400. http://dx.doi.org/10.1177/147823919600400105.

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The properties of bisphenol A epoxy resins containing bidentate cyclic carbonate oligomers cured with BF3 complexes by cationic polymerisation are presented. The effect of cyclic carbonate content on the gel time, peak exotherm temperature and degree of crosslinking of the epoxide-cyclic carbonate compositions were investigated. It was found that for the range of 0–30 wt. % the amount of energy released during crosslinking rises with increasing cyclic carbonate concentration. The reaction mechanism, and the reason for the higher enthalpy of polymerisation of epoxide-cyclic carbonate compositio
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20

Rokicki, Gabriel, and Thinh X. Nguyen. "Epoxy Resin - Cyclic Carbonate Oligomer Compositions Cured with BF3·Et2O." Polymers and Polymer Composites 4, no. 1 (1996): 45–51. http://dx.doi.org/10.1177/096739119600400105.

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The properties of bisphenol A epoxy resins containing bidentate cyclic carbonate oligomers cured with BF3 complexes by cationic polymerisation are presented. The effect of cyclic carbonate content on the gel time, peak exotherm temperature and degree of crosslinking of the epoxide-cyclic carbonate compositions were investigated. It was found that for the range of 0–30 wt. % the amount of energy released during crosslinking rises with increasing cyclic carbonate concentration. The reaction mechanism, and the reason for the higher enthalpy of polymerisation of epoxide-cyclic carbonate compositio
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21

Chen, Lijun, Wen Li, and Wei Jiang. "Synthesis and application of cationic fluorinated acrylic resin for use in cathodic electrodeposition coatings." Pigment & Resin Technology 43, no. 5 (2014): 251–55. http://dx.doi.org/10.1108/prt-10-2013-0093.

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Purpose – The purpose of this paper was to prepare a fluorinated acrylate resin, which would be synthesised via solution polymerisation of fluorinated monomer, acrylate monomers and other functional monomers. Relevant characterisation and application studies were also carried out. Fluorinated polymers are expected to be adopted in specific coatings to afford outstanding advantages, such as high chemical and photochemical resistance, low surface tension and low refractive index. At present, fluorinated cathodic electrodeposition (CED) coatings are attracting the attention that they deserve and
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22

Du, Alice W., Hongxu Lu, and Martina H. Stenzel. "Cationic glycopolymers through controlled polymerisation of a glucosamine-based monomer mimicking the behaviour of chitosan." Polymer Chemistry 8, no. 11 (2017): 1750–53. http://dx.doi.org/10.1039/c7py00082k.

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23

Pereira, Guillaume, Cécile Huin, Simona Morariu, Véronique Bennevault-Celton та Philippe Guégan. "Synthesis of Poly(2-methyl-2-oxazoline) Star Polymers with a β-Cyclodextrin Core". Australian Journal of Chemistry 65, № 8 (2012): 1145. http://dx.doi.org/10.1071/ch12232.

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Synthesis of star polymers with a β-cyclodextrin (CD) core was undertaken using the arm-first, then the core-first strategy. Cationic ring opening polymerisation (CROP) of 2-methyl-2-oxazoline (MeOx) was first initiated by allyl bromide, and then quenched with heptakis(6-deoxy-6-amino)β-CD in order to get a 7-arm star polymer. Then heptakis(6-deoxy-6-iodo-2,3-di-O-acetyl)β-CD was synthesised in order to get an initiator for the CROP of MeOx. Initiation and propagation kinetic measurements were undertaken and the ratio kp/ki was found to be too high to provide a controlled polymerisation. Using
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24

MADHUSUDAN, BANERJEE, BISWAS MUKUL, and M. MAITI MRINAL. "Cationic Polymerisation of N-Vinylcarbazole by some (3d) Transition Metal Ion loacled 13X Molecular Sieves." Journal of Indian Chemical Society Vol. 62, Nov 1985 (1985): 847–50. https://doi.org/10.5281/zenodo.6324942.

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Department of Chemistry, Indian Institute of Technology, Kharagpur-721 302 Materials Science Centre, Indian Institute of Technology, Kharagpur-721 301 The polymerisation of <em>N</em>-vinylcarbazole by 13X molecular sieves modified by five different transition metal ions, namely, Mn<sup>II</sup> Co<sup>II</sup>, Ni<sup>II</sup>, Cu<sup>II</sup> and Zn<sup>II</sup> has been studied at a fixed metal ion incorporation. The order of reactivity follows the trend, Mn<sup>II</sup> &asymp; Cu<sup>II</sup> &gt; Co<sup>II</sup> &gt; Zn<sup>II</sup> &gt; Ni<sup>II</sup>. The energy of activation has been
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25

Fischer, Sabrina, Aneta Schimanowitz, Robert Dawson, Irena Senkovska, Stefan Kaskel, and Arne Thomas. "Cationic microporous polymer networks by polymerisation of weakly coordinating cations with CO2-storage ability." J. Mater. Chem. A 2, no. 30 (2014): 11825–29. http://dx.doi.org/10.1039/c4ta02022g.

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26

Li, Wen, Zhongbin Bao, Lijun Chen, and Dongshun Deng. "Synthesis and properties of novel self-crosslinked cationic fluorinated acrylic latex prepared with novel emulsified system." Pigment & Resin Technology 45, no. 4 (2016): 259–64. http://dx.doi.org/10.1108/prt-07-2015-0061.

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Purpose At present, the conventional method of preparing cationic fluorinated acrylic latex is to emulsify copolymerised monomers with cationic surfactants. However, there has been a wide concern about using Gemini surfactants to prepare cationic polymer latex to improve its properties. The purpose of this paper was to focus on the synthesis of novel self-crosslinked cationic fluorinated acrylic latex (SCFAL), during which the copolymerised monomers were initiated with a water soluble azo initiator and emulsified with mixed surfactants of Gemini emulsifier and alkyl polyglycoside (APG). Design
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27

Uttley, Oliver Frank, Leonie Alice Brummitt, Stephen David Worrall, and Steve Edmondson. "Accessible and sustainable Cu(0)-mediated radical polymerisation for the functionalisation of surfaces." Polymer Chemistry 11, no. 23 (2020): 3831–40. http://dx.doi.org/10.1039/d0py00516a.

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28

Liu, Zin-Huang, and Mang-Jye Ger. "Changes of Enzyme Activity During Pollen Germination in Maize, and Possible Evidence of Lignin Synthesis." Functional Plant Biology 24, no. 3 (1997): 329. http://dx.doi.org/10.1071/pp96015.

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During pollen germination in Zea mays L., the activity of phenylalanine ammonia-lyase and peroxidases increased, accompanied by a decline of phenolic compounds. Levels of IAA decreased dramatically as the pollen germinated, and this decline was correlated with enhanced IAA oxidation activity by IAA oxidase in the germinated pollen. The cationic peroxidase isozymes (pI 9.0) with estimated molecular mass of 45 kDa may be involved in lignin polymerisation in the pollen cell wall.
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29

Saßmannshausen, Jörg. "Cationic and dicationic zirconocene compounds as initiators of carbocationic isobutene polymerisation." Dalton Transactions, no. 41 (2009): 9026. http://dx.doi.org/10.1039/b908611k.

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30

Janovský, Igor, Sergej Naumov, Wolfgang Knolle, and Reiner Mehnert. "Radiation-induced polymerisation of 2,3-dihydrofuran: free-radical or cationic mechanism?" Radiation Physics and Chemistry 72, no. 2-3 (2005): 125–33. http://dx.doi.org/10.1016/j.radphyschem.2004.09.008.

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31

Cauvin, Séverine, François Ganachaud, Michel Moreau, and Patrick Hémery. "High molar mass polymers by cationic polymerisation in emulsion and miniemulsion." Chemical Communications, no. 21 (2005): 2713. http://dx.doi.org/10.1039/b501489a.

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32

Bochmann, Manfred, and Andrew J. Jaggar. "Cationic titanium alkyls as alkene polymerisation catalysts: Solvent and anion dependence." Journal of Organometallic Chemistry 424, no. 2 (1992): C5—C7. http://dx.doi.org/10.1016/0022-328x(92)83154-a.

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33

Xie, Dan, and Yangcheng Lu. "Understanding the effects of nucleophiles in fast living cationic polymerisation of isobutyl vinyl ether in a microflow system from stability and activity of propagating chains." Polymer Chemistry 12, no. 17 (2021): 2542–50. http://dx.doi.org/10.1039/d1py00222h.

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34

PLESCH, P. H. "ChemInform Abstract: The Propagation Rate-Constants of the Cationic Polymerisation of Alkenes." ChemInform 24, no. 8 (2010): no. http://dx.doi.org/10.1002/chin.199308312.

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35

Castelvetro, Valter, Gianluca Bontà Pittaluga, and Francesco Ciardelli. "Multifunctional Poly(vinyl ethers) by Controlled Cationic Polymerisation in a Fluorinated Solvent." Macromolecular Chemistry and Physics 202, no. 10 (2001): 2093–103. http://dx.doi.org/10.1002/1521-3935(20010601)202:10<2093::aid-macp2093>3.0.co;2-b.

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36

Milione, Stefano, Cosimo Montefusco, Tomas Cuenca, and Alfonso Grassi. "Cationic benzyl zirconium heteroscorpionates: synthesis and characterization of a novel ethylene polymerisation catalyst showing an unusual temperature dependent polymerisation mechanism." Chemical Communications, no. 10 (April 16, 2003): 1176–77. http://dx.doi.org/10.1039/b301997g.

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37

Britovsek, George J. P., Vernon C. Gibson, Stefan K. Spitzmesser, Kilian P. Tellmann, Andrew J. P. White, and David J. Williams. "Cationic 2,6-bis(imino)pyridine iron and cobalt complexes: synthesis, structures, ethylene polymerisation and ethylene/polar monomer co-polymerisation studies." Journal of the Chemical Society, Dalton Transactions, no. 6 (2002): 1159. http://dx.doi.org/10.1039/b106614p.

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38

Joseph, M. Cassiem, Andrew J. Swarts, and Selwyn F. Mapolie. "Phenylacetylene polymerisation mediated by cationic cyclometallated palladium(ii) complexes bearing benzylidene 2,6-diisopropylphenylamine and its derivatives as ligands." Dalton Transactions 47, no. 35 (2018): 12209–17. http://dx.doi.org/10.1039/c8dt02728e.

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39

Wittenberg, James B., and Lyle Isaacs. "Cucurbit[6]uril dimer induces supramolecular polymerisation of a cationic polyethylene glycol derivative." Supramolecular Chemistry 26, no. 3-4 (2013): 157–67. http://dx.doi.org/10.1080/10610278.2013.842642.

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40

Meelua, Wijitra, Mikko Linnolahti та Jitrayut Jitonnom. "Mechanism of cationic ring-opening polymerisation of ε-caprolactone using metallocene/borate catalytic systems: a DFT and NCI study on chain initiation, propagation and termination". RSC Advances 14, № 17 (2024): 11715–27. http://dx.doi.org/10.1039/d4ra01178c.

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DFT and NCI studies provide a detailed mechanism of cationic ROP of ε-caprolactone by metallocene/borate catalysts and capture weak interactions at the contacts between the borate counteranions and the cationic species.
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41

Hola, Emilia, Maciej Pilch, and Joanna Ortyl. "Thioxanthone Derivatives as a New Class of Organic Photocatalysts for Photopolymerisation Processes and the 3D Printing of Photocurable Resins under Visible Light." Catalysts 10, no. 8 (2020): 903. http://dx.doi.org/10.3390/catal10080903.

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In the present paper, novel thioxanthone-based compounds were synthesised and evaluated as a component of photoredox catalysts/photoinitiating systems for the free-radical polymerisation (FRP) of acrylates and the ring-opening cationic polymerisation (CP) of epoxy monomers. The performance of the obtained thioxanthones in two- and three-component photoinitiating systems, in combination with amines, iodonium or sulphonium salt, as well as with alkyl halide, for photopolymerisation processes upon exposure to light emitting diodes (LEDs) with a maximum emission of 405 nm and 420 nm, was investiga
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42

Bösch, Andreas, Manfred Nimtz, and Petra Mischnick. "Mechanistic studies on cationic ring-opening polymerisation of cyclodextrin derivatives using various Lewis acids." Cellulose 13, no. 4 (2006): 493–507. http://dx.doi.org/10.1007/s10570-005-9029-9.

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43

Plesch, P. H. "Developments in the theory of cationic polymerisation. Part IX some effects of the complex formation between cations and monomers." Makromolekulare Chemie. Macromolecular Symposia 32, no. 1 (1990): 299–306. http://dx.doi.org/10.1002/masy.19900320123.

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44

Liu, Tai Qi, Ning Gao, Yue Wang, Liang Fa Gong, and You Liang Hu. "A Novel Polymer Supported Catalyst for Preparation of Sydiopolystyrene." Advanced Materials Research 788 (September 2013): 178–81. http://dx.doi.org/10.4028/www.scientific.net/amr.788.178.

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Poly (styrene-co-acrylonitrile) supported TiCl4 was prepared and characterized. IR analysis shows that the absorption of the acronitrile group shifted from 2233cm-1 to 2277cm-1 after its coordination to TiCl4. It is found that this catalyst shows a much higher catalytic activity than that of TiCl4 in the preparation of sydiopolystyrene, especially, it can be used to prepare a styrene rich poly (styrene-co-ethylene), the resulted poly (styrene-co-ethylene) is a crystalline polymer shown a Tm much lower than that of a homo sydiopolystyrene. The molecular simulation result shows that the coordina
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45

Kikuchi, Takashi, Takashi Murase, Sota Sato, and Makoto Fujita. "Polymerisation of an Anionic Monomer in a Self-Assembled M12L24 Coordination Sphere with Cationic Interior." Supramolecular Chemistry 20, no. 1-2 (2008): 81–94. http://dx.doi.org/10.1080/10610270701742579.

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46

Yagoi, Yusuf, Gürkan Hizal, Ayşen Önen, and İErsin Serhatli. "Synthetic routes to block copolymerization by changing mechanism from cationic polymerization to free radical polymerisation." Macromolecular Symposia 84, no. 1 (1994): 127–36. http://dx.doi.org/10.1002/masy.19940840116.

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47

Sun, Hongsui, Jamie S. Ritch, and Paul G. Hayes. "Ring-opening polymerisation of rac-lactide mediated by cationic zinc complexes featuring P-stereogenic bisphosphinimine ligands." Dalton Transactions 41, no. 13 (2012): 3701. http://dx.doi.org/10.1039/c2dt11954d.

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48

Cypryk, M., J. Kurjata, and J. Chojnowski. "Tertiary trisilyloxonium ion in cationic ring-opening polymerisation of a model cyclic siloxane, octamethyl-1,4-dioxatetrasilacyclohexane." Journal of Organometallic Chemistry 686, no. 1-2 (2003): 373–78. http://dx.doi.org/10.1016/s0022-328x(03)00452-2.

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49

Bochmann, Manfred, and Simon J. Lancaster. "Base-free cationic 14-electron alkyls of Ti, Zr and Hf as polymerisation catalysts: A comparison." Journal of Organometallic Chemistry 434, no. 1 (1992): C1—C5. http://dx.doi.org/10.1016/0022-328x(92)83360-t.

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50

González, Regino, Jacques Rieumont, Pedro Ortiz, Leobardo Mendoza, Juan Radilla, and Mayra González. "Influence of Water on the Cationic Polymerisation of 2-Ethenylfuran by Trifluoroacetic Acid in Methylene Dichloride." Macromolecular Chemistry and Physics 202, no. 5 (2001): 710–18. http://dx.doi.org/10.1002/1521-3935(20010301)202:5<710::aid-macp710>3.0.co;2-o.

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