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Journal articles on the topic 'Alkyl chain'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Zhao, Ya Mei, and Chang Zheng Zheng. "Preparation of Porous Polysulfone Membranes Using Ionic Liquids with Different Alkyl Chain as Additives." Key Engineering Materials 501 (January 2012): 330–34. http://dx.doi.org/10.4028/www.scientific.net/kem.501.330.

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1-alky-3-methylimidazolium hexfluorophosphate ([n-Cnmim][PF6]) and 1-alky-3- methylimidazolium thiocyanate ([n-Cnmim]SCN) (n=4,8,16) were firstly introducing into the casting solution (PSF/NMP), porous polysulfone (PSF) membranes were successfully prepared by the wet-phase-inversion. The scanning electron microscope was utilized to visualize the cross-sections of the membranes, in order to study the influence of ionic liquids with different alkyl chain on the porous structures. The results indicate that the PSF membranes have different structures and separation properties due to ionic liquids

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2

Chen, Bo-Yu, Yun-Chiao Huang, and Jeng-Shiung Jan. "Molecular assembly of alkyl chain-grafted poly(l-lysine) tuned by backbone chain length and grafted alkyl chain." RSC Advances 5, no. 29 (2015): 22783–91. http://dx.doi.org/10.1039/c4ra14290j.

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3

Aljuaid, Nada, Mark Tully, Jani Seitsonen, Janne Ruokolainen, and Ian W. Hamley. "Benzene tricarboxamide derivatives with lipid and ethylene glycol chains self-assemble into distinct nanostructures driven by molecular packing." Chemical Communications 57, no. 67 (2021): 8360–63. http://dx.doi.org/10.1039/d1cc03437e.

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The self-assembly in aqueous solution of benzene-1,3,5-tricarboxamide (BTA) bearing one alkyl chain and two PEG (polyethylene glycol) chains or two alkyl chains and one PEG chain yields molecular-packing driven nanostructures.

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4

Kleszczyńska, Halina, Krzysztof Bielecki, Janusz Sarapuk, et al. "Biological Activity of New N-Oxides of Tertiary Amines." Zeitschrift für Naturforschung C 61, no. 9-10 (2006): 715–20. http://dx.doi.org/10.1515/znc-2006-9-1018.

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AbstractPotential biological properties of newly synthesized single and double alkyl chain N-oxides of tertiary amines (NTA) were studied. Individual compounds in each of the series had alkyl chains of different length. Various experiments were performed to determine a mechanism of the interaction between NTA and model and biological membranes. These were measurements of hemolytic efficiencies of NTA (pig erythrocytes), their influence on the transition temperatures (DPPC liposomes), on potassium leakage from cucumber, its growth and chlorophyll content (Cucumis sativus cv. Krak F1), and on th

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Kleszczyńska, Halina, Małgorzata Oświęcimska, Janusz Sarapuk, Stanisław Przestalski, and Stanisław Witek. "Protective Effect of Quaternary Piperidinium Salts on Lipid Oxidation in the Erythrocyte Membrane." Zeitschrift für Naturforschung C 54, no. 5-6 (1999): 424–28. http://dx.doi.org/10.1515/znc-1999-5-619.

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Abstract A new series of amphiphilic compounds with incorporated antioxidant functional group has been investigated. Piperidinium bromides, differing in the alkyl chain length (8, 10, 12, 14 and 16 carbon atoms in the chain) were synthesised to protect biological and/or model membranes against peroxidation and following negative consequences. Their antioxidant activity was studied with erythrocytes subjected to UV radiation. The salts used inhibited lipid oxidation in the erythrocyte membrane. The degree of this inhibition depended on the alkyl chain length of the bromide used and increased wi

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6

Wu, Jin Dan, Guo Qiang Cai, and Ji Ping Wang. "Synthesis of N-Alkyl-N,N-Dimethyl Quaternized Chitosan and its Application as Effective Absorbents towards Reactive Dye KN-R." Journal of Nano Research 43 (September 2016): 29–37. http://dx.doi.org/10.4028/www.scientific.net/jnanor.43.29.

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Several types of N-alkyl-N,N-dimethyl quaternized chitosan (QC) derivatives with different alkyl chains were prepared as effective adsorbents towards reactive dye KN-R. QC with long dodecanyl chain was insoluble in neutral solution but could self-assembled into spherical nanoparticles. The effects of degree of quaternization and alkyl chain length on the adsorption properties of KN-R onto QC were investigated. The results showed that a higher degree of quaternization of copolymers led to a higher adsorption capacity. At similar degree of quaternization, QC nanoparticles with longer alkyl chain

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7

Wang, Jinben, Buxing Han, Ming Dai, Haike Yan, Zhixin Li, and R. K. Thomas. "The Role of Chain Length and Structure in Surfactant Adsorption at Na-Kaolinite." Adsorption Science & Technology 16, no. 7 (1998): 565–75. http://dx.doi.org/10.1177/026361749801600706.

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The adsorption of a series of cationic surfactants with different chain lengths and structures on a non-swelling clay surface (sodium kaolinite) has been studied by microelectrophoresis and adsorption isotherms. It was found that an increase in the number of CH2 groups in the shorter alkyl chain of the double-chain surfactant has much less effect on the adsorption behaviour than changing the length of the alkyl chain in the single-chain surfactants. It is inferred that the effective hydrophobicity of the shorter chains in these double-chain surfactants is reduced by their intramolecular associ

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8

Hussain, Hazrat, Tyler Helton, Yang Du, et al. "A comparative study of branched and linear mannitol-based amphiphiles on membrane protein stability." Analyst 143, no. 23 (2018): 5702–10. http://dx.doi.org/10.1039/c8an01408f.

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9

Santhosh Kumar Reddy, Y., Nitin P. Lobo, and T. Narasimhaswamy. "Effect of alkyl chain and linking units on mesophase transitions and molecular order of rod-like thiophene mesogens:13C NMR investigation." New Journal of Chemistry 42, no. 1 (2018): 598–612. http://dx.doi.org/10.1039/c7nj03525j.

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This study provides insight into the influence of alkyl chains and linking units on the mesophase properties of thiophene-based mesogens and on the orientational constraints of the core and terminal alkyl chain.

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10

Lin, Kun-Han, Antonio Prlj, and Clémence Corminboeuf. "How does alkyl chain length modify the properties of triphenylamine-based hole transport materials?" Journal of Materials Chemistry C 6, no. 5 (2018): 960–65. http://dx.doi.org/10.1039/c7tc05318e.

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Manipulating the length of alkyl chains is a widely-adopted strategy to fine tune the properties of organic materials. Yet, a systematic exploration of the influence of chain length on those properties most relevant to highly performing hole transport materials in perovskite solar cells is lacking. Multiscale simulations, along with morphological analyses, uncover relationships between alkyl chain length and HTM properties providing important insights for the optimization of future organic materials.

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11

Wan, Zhongquan, Chunyang Jia, Yan Wang, and Xiaojun Yao. "Dithiafulvenyl–triphenylamine organic dyes with alkyl chains for efficient coadsorbent-free dye-sensitized solar cells." RSC Advances 5, no. 63 (2015): 50813–20. http://dx.doi.org/10.1039/c5ra06774j.

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Dithiafulvenyl–triphenylamine (DTF–TPA) based D-D-η-A organic dyes with different alkyl chains attached on the DTF unit were synthesized to investigate the effect of alkyl chain lengths on the photovoltaic performances of dye-sensitized solar cells.

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12

Kipkorir, Anthony, Xiuyu Jin, Haifeng Gao, and Prashant V. Kamat. "Photoinduced electron transfer across the polymer-capped CsPbBr₃ interface in a polar medium." Journal of Chemical Physics 158, no. 14 (2023): 144702. http://dx.doi.org/10.1063/5.0143920.

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In-situ polymer capping of cesium lead bromide (CsPbBr3) nanocrystals with polymethyl acrylate is an effective approach to improve the colloidal stability in the polar medium and thus extends their use in photocatalysis. The photoinduced electron transfer properties of polymethyl acrylate (PMA)-capped CsPbBr3 nanocrystals have been probed using surface-bound viologen molecules with different alkyl chains as electron acceptors. The apparent association constant ( K app) obtained for the binding of viologen molecules with PMA-capped CsPbBr3 was 2.3 × 107 M−1, which is an order of magnitude great

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13

Kumar, Dileep, and Mihalj Poša. "Thermodynamics of Micelle Formation of Selected Homologous 7-Alkyl Derivatives of Na-Cholate in Aqueous Solution: Steroid Skeleton and the Alkyl Chain Conformation." International Journal of Molecular Sciences 25, no. 23 (2024): 13055. https://doi.org/10.3390/ijms252313055.

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Bile acid salts are steroid biosurfactants that build relatively small micelles compared to surfactants with an alkyl chain due to the rigid conformation of the steroid skeleton. In order to increase the capacity of micellar solubilization of the hydrophobic molecular guest, certain C7 alkyl derivatives were synthesized. Namely, introducing an alkyl group in the C7 position of the steroid skeleton results in a more effective increase in the micelle’s hydrophobic domain (core) than the introduction in the C3 position. In comparison, fewer synthetic steps are required than if alkyl groups are in

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14

Clamor, Cinzia, Beatrice N. Cattoz, Peter M. Wright, Rachel K. O'Reilly, and Andrew P. Dove. "Controlling the crystallinity and solubility of functional PCL with efficient post-polymerisation modification." Polymer Chemistry 12, no. 13 (2021): 1983–90. http://dx.doi.org/10.1039/d0py01535k.

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Varying the size of an alkyl side-chain group, installed by thiol–ene addition of alkylthiols to poly(ε-allyl caprolactone), the semi-crystallinity and lipophilicity of functional PCLs could be modulated to achieve divergent physico-chemical properties.

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15

Gawrilow, Maxim, and Martin A. Suhm. "Quantifying Conformational Isomerism in Chain Molecules by Linear Raman Spectroscopy: The Case of Methyl Esters." Molecules 26, no. 15 (2021): 4523. http://dx.doi.org/10.3390/molecules26154523.

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The conformational preferences of the ester group have the potential to facilitate the large amplitude folding of long alkyl chains in the gas phase. They are monitored by Raman spectroscopy in supersonic jet expansions for the model system methyl butanoate, after establishing a quantitative relationship with quantum–chemical predictions for methyl methanoate. This requires a careful analysis of experimental details, and a simulation of the rovibrational contours for near-symmetric top molecules. The technique is shown to be complementary to microwave spectroscopy in quantifying coexisting con

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16

Kelland, Malcolm A., and Amber L. Thompson. "Alkyl-chain disorder in tetraisohexylammonium bromide." Acta Crystallographica Section C Crystal Structure Communications 68, no. 4 (2012): o152—o155. http://dx.doi.org/10.1107/s0108270112009377.

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Tetraisohexylammonium bromide [systematic name: tetrakis(4-methylpentyl)azanium bromide], C24H52N+·Br−, is a powerful structure II clathrate hydrate crystal-growth inhibitor. The crystal structure, in the space groupP3221, contains one ammonium cation and one bromide anion in the asymmetric unit, both on general positions. At 100 K, the ammonium cation exhibits one ordered isohexyl chain and three disordered isohexyl chains. At 250 K, all four isohexyl chains are disordered. In an effort to reduce the disorder in the alkyl chains, the crystal was thermally cycled, but the disorder remained, in

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17

Zhou, Zichun, Shengjie Xu, and Xiaozhang Zhu. "Mapping the Side-Chain Length of Small-Molecule Acceptors towards the Optimal Hierarchical Morphology in Ternary Organic Solar Cells." Organic Materials 03, no. 02 (2021): 191–97. http://dx.doi.org/10.1055/a-1472-7302.

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Using multiple light-absorbing materials to realize a broader and better absorption spectrum in multi-component organic photovoltaics has achieved significant success to obtain high power conversion efficiency. Meanwhile, the good materials combinations with matched electronic structure and proper blend morphology for charge generation and transport are of primary importance for implementation of the multi-component strategy. Hierarchical morphology has been clearly demonstrated to improve all performance parameters in ternary organic photovoltaics but shows strong dependence on the molecular

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18

Maity, Sudhangshu, Arindam Sannigrahi, Sandip Ghosh, and Tushar Jana. "N-alkyl polybenzimidazole: Effect of alkyl chain length." European Polymer Journal 49, no. 8 (2013): 2280–92. http://dx.doi.org/10.1016/j.eurpolymj.2013.05.011.

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19

Machida, Takashi, Ryosuke Taniguchi, Tsuyoshi Oura, Kazuki Sada, and Kenta Kokado. "Liquefaction-induced emission enhancement of tetraphenylethene derivatives." Chemical Communications 53, no. 15 (2017): 2378–81. http://dx.doi.org/10.1039/c6cc09939d.

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A typical AIE dye, TPE, was liquefied by attaching long and branched alkyl chains. The obtained liquid dye showed intense emission compared to that of the solid dye or TPE. The linkage between TPE and the alkyl chain led to significant differences in their photoluminescent and thermal properties.

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20

Yamamura, Yasuhisa, Takahito Murakoshi, Sakiko Iwagaki, et al. "Structure and molecular packing in smectic BCr and Ad phases of Schiff base liquid crystal compounds through the analyses of layer spacing, entropy and crystal structure." Physical Chemistry Chemical Physics 19, no. 29 (2017): 19434–41. http://dx.doi.org/10.1039/c7cp03863a.

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21

Kim, Ik-Soo, Kenji Kono, and Toru Takagishi. "Influence of Alkyl Chain Length of Dialkyldimethylammonium Bromide on Disperse Dyeing of Nylon 6 Fibers." Textile Research Journal 67, no. 9 (1997): 664–70. http://dx.doi.org/10.1177/004051759706700905.

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The effect of the alkyl chain length of dialkyldimethylammonium bromide (dad-mab) on disperse dyeing of nylon 6 fibers is investigated. Both dyeing rate and saturation value of 1,4-diaminoanthraquinone (1,4-daa) improve with decreasing alkyl chain length of dadmab, dadmab does not lower the glass transition temperature Tg of nylon 6. The apparent solubility of 1,4-daa increases with increasing alkyl chain length of dadmab, but the adsorption of dadmab on nylon 6 fibers decreases with its increasing alkyl chain length. It is likely that the interaction of dadmab with nylon 6 or with the dye inf

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22

Ahn, Yejin, Sooji Hwang, Hyojin Kye, Min Seon Kim, Wi Hyoung Lee, and Bong-Gi Kim. "Side-Chain-Assisted Transition of Conjugated Polymers from a Semiconductor to Conductor and Comparison of Their NO2 Sensing Characteristics." Materials 16, no. 7 (2023): 2877. http://dx.doi.org/10.3390/ma16072877.

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To investigate the effect of a side chain on the electrical properties of a conjugated polymer (CP), we designed two different CPs containing alkyl and ethylene glycol (EG) derivatives as side chains on the same conjugated backbone with an electron donor-acceptor (D-A) type chain configuration. PTQ-T with an alkyl side chain showed typical p-type semiconducting properties, whereas PTQ-TEG with an EG-based side chain exhibited electrically conductive behavior. Both CPs generated radical species owing to their strong D-A type conjugated structure; however, the spin density was much greater in PT

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23

Li, Xinyuan, Shu Lu, Meifei Niu, Ruzhen Cheng, Yanjun Gong, and Jun Xu. "Asphaltene Inhibition and Flow Improvement of Crude Oil with a High Content of Asphaltene and Wax by Polymers Bearing Ultra-Long Side Chain." Energies 14, no. 24 (2021): 8243. http://dx.doi.org/10.3390/en14248243.

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A high content of asphaltene and wax in crude oil leads to difficulties in the recovery and transportation of crude oil due to the precipitation of asphaltenes and the deposition of waxes. Comb-like polymers were found to be capable of inhibiting the aggregation of asphaltenes and crystallization of waxes. In this work, comb-like bipolymers of α-olefins/ultra-long chain (C18, C22 and C28) alkyl acrylate were synthesized and characterized by FT-IR and 1H NMR spectra. The results show that, for a model oil containing asphaltene, the initial precipitation point (IPP) of asphaltene was prolonged b

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24

Bourque, Alexander N., and Mary Anne White. "Control of thermochromic behaviour in crystal violet lactone (CVL)/alkyl gallate/alcohol ternary mixtures." Canadian Journal of Chemistry 93, no. 1 (2015): 22–31. http://dx.doi.org/10.1139/cjc-2014-0251.

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Three-component thermochromic mixtures generally consist of a leuco dye, a phenolic colour developer, and a high-melting organic solvent (listed in order of increasing mass). Their colouring behaviour is controlled by competing binary interactions, with the dye–developer interaction responsible for colour formation and the developer–solvent interaction responsible for solid-state colour erasure. In the present study, the reversible thermochromic properties of twelve systems of three-component mixtures comprising crystal violet lactone (CVL, dye), one of four alkyl gallates (developer), and one

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25

Bielawska, Magdalena, Anna Zdziennicka, and Bronisław Jańczuk. "Comparison between surface and volumetric properties of short-chain alcohols and some classical surfactants." Annales Universitatis Mariae Curie-Sklodowska, sectio AA – Chemia 71, no. 1 (2016): 1. http://dx.doi.org/10.17951/aa.2016.71.1.1.

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<p>Measurements of the dynamic surface tension of the aqueous solutions of methanol, ethanol, propanol, CTAB and SDDS at their given concentrations were made. From the obtained results and the literature data it was concluded that the adsorption of short-chain alcohols at the water-air interface is somewhat similar to that of classical surfactants. For that reason the relationship between the Gibbs standard free energy of adsorption of short-chain alcohols and classical surfactants at that interface was established. The correlation between the chemical potential of mixing of alcohols and

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26

Lu, Renguo, Hiroshi Tani, Shinji Koganezawa, and Masayuki Hata. "Alkylated Polyphenyl Ethers as High-Performance Synthetic Lubricants." Lubricants 10, no. 10 (2022): 275. http://dx.doi.org/10.3390/lubricants10100275.

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Lubricants exhibiting both thermal and chemical stability that consequently generate less hydrogen during friction are required to avoid the hydrogen embrittlement of moving mechanical components. The present work studied the effects of the length and number of alkyl chains on the tribological properties of polyphenyl ethers (PPEs), which feature good thermal and radiation resistance. PPEs were found to have much lower friction coefficients compared with a poly-alpha-olefin and alkyldiphenyl ether, and the effect of the running-in process on friction appeared to be negligible. The formation of

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27

Hu, Yi, Kai Miao, Li Xu, et al. "Two side chains, three supramolecules: exploration of fluorenone derivatives towards crystal engineering." Physical Chemistry Chemical Physics 19, no. 29 (2017): 19205–16. http://dx.doi.org/10.1039/c7cp03894a.

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28

Lin, Kaiwen, Changjun Wu, Guangyao Zhang, et al. "Toward High-Performance Electrochromic Conjugated Polymers: Influence of Local Chemical Environment and Side-Chain Engineering." Molecules 27, no. 23 (2022): 8424. http://dx.doi.org/10.3390/molecules27238424.

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Three homologous electrochromic conjugated polymers, each containing an asymmetric building block but decorated with distinct alkyl chains, were designed and synthesized using electrochemical polymerization in this study. The corresponding monomers, namely T610FBTT810, DT6FBT, and DT48FBT, comprise the same backbone structure, i.e., an asymmetric 5-fluorobenzo[c][1,2,5]thiadiazole unit substituted by two thiophene terminals, but were decorated with different types of alkyl chain (hexyl, 2-butyloctyl, 2-hexyldecyl, or 2-octyldecyl). The effects of the side-chain structure and asymmetric repeati

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29

Yang, Jiyuan, Guoyang Lei, Jinfeng Zhu, et al. "Particulate-bound alkyl nitrate pollution and formation mechanisms in Beijing, China." Atmospheric Chemistry and Physics 24, no. 1 (2024): 123–36. http://dx.doi.org/10.5194/acp-24-123-2024.

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Abstract. Fine particulate matter (PM2.5) samples were collected between November 2020 and October 2021 at the Minzu University of China in Beijing, and the n-alkyl nitrate concentrations in the PM2.5 samples were determined to investigate n-alkyl nitrate pollution and formation mechanisms. C9–C16 n-alkyl nitrate standards were synthesized, and the n-alkyl nitrate concentrations in PM2.5 were determined by gas chromatography triple quadrupole mass spectrometry. Temporal trends in and correlations between particulate-bound n-alkyl nitrate, ozone, PM2.5, and nitrogen dioxide concentrations were

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30

Ramsay, R. R., M. J. Krueger, S. K. Youngster, and T. P. Singer. "Evidence that the inhibition sites of the neurotoxic amine 1-methyl-4-phenylpyridinium (MPP+) and of the respiratory chain inhibitor piericidin A are the same." Biochemical Journal 273, no. 2 (1991): 481–84. http://dx.doi.org/10.1042/bj2730481.

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1-Methyl-4-phenylpyridinium (MPP+), the neurotoxic bioactivation product of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), interrupts mitochondrial electron transfer at the NADH dehydrogenase-ubiquinone junction, as do the respiratory chain inhibitors rotenone, piericidin A and barbiturates. Proof that these classical respiratory chain inhibitors and MPP+ react at the same site in the complex NADH dehydrogenase molecule has been difficult to obtain because none of these compounds bind covalently to the target. The 4′-alkyl derivatives of MPP+ inhibit NADH oxidation in submitochondrial pa

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31

Yamamura, Yasuhisa, Takahito Murakoshi, Mafumi Hishida, and Kazuya Saito. "Examination of molecular packing in orthogonal smectic liquid crystal phases: a guide for molecular design of functional smectic phases." Physical Chemistry Chemical Physics 19, no. 37 (2017): 25518–26. http://dx.doi.org/10.1039/c7cp04744d.

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32

Lee, Youngwan, Telugu Bhim Raju, Hyerim Yeom, et al. "Alkyl Chain Engineering of Low Bandgap Non-Fullerene Acceptors for High-Performance Organic Solar Cells: Branched vs. Linear Alkyl Side Chains." Polymers 14, no. 18 (2022): 3812. http://dx.doi.org/10.3390/polym14183812.

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In this work, we report the synthesis and photovoltaic properties of IEBICO-4F, IEHICO-4F, IOICO-4F, and IDICO-4F non-fullerene acceptors (NFAs) bearing different types of alkyl chains (2-ehtylhexyl (EH), 2-ethylbutyl (EB), n-octyl (O), and n-decyl (D), respectively). These NFAs are based on the central indacenodithiophene (IDT) donor core and the same terminal group of 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IC-2F), albeit with different side chains appended to the thiophene bridge unit. Although the side chains induced negligible differences between the NFAs in te

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33

Liu, Ai Xin. "Investigation on Self-Assembly in Binary Organogels Containing Benzimidazole/Benzothiazole and Alkyl Substituent Acids." Applied Mechanics and Materials 368-370 (August 2013): 752–55. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.752.

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The gelation behaviors and self-assembly of organogels composed of benzimidazole/benzothiazole derivatives and benzoic acid with single/multi-alkyl substituent chain in various organic solvents were investigated. Their gelation behaviors in 20 solvents were tested as new organic gelators. It showed that the number and length of alkyl substituent chains, and benzimidazole/benzothiazole segment, have played a crucial role in the gelation behavior of all gelator mixtures in various organic solvents. More alkyl chains in molecular skeletons in present gelators are favorable for the gelation of org

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34

Rudert, Rainer, Burkhard Schulz, Günter Reck, Dieter Vollhardt, and Jörg Kriwanek. "N-n-Alkyl N,N-dimethylammonioacetic acid bromides: the first complete series of crystal and molecular structure determinations of an amphiphilic compound with alkyl chain lengths n = 1,..., 16." Acta Crystallographica Section B Structural Science 56, no. 1 (2000): 124–31. http://dx.doi.org/10.1107/s0108768199007740.

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The molecular and crystal structures of 16 N-n-alkyl N,N-dimethylammonioacetic acid bromides with chain lengths between n = 1 and n = 16 have been determined. All compounds from n = 5 to n = 16 form bilayers with interdigitated chains. The even-numbered chains display the chain packing type M 2 II. The chain packing of the odd-numbered chain compounds is less regular. The head groups of all compounds are connected via electrostatic N+...Br− interactions, and by OH...Br− hydrogen bonds. The compounds with short chains are packed in different ways. Their molecular conformation depends on the cry

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Mochizuki, Shinichi, Koichi Nishina, Shota Fujii, and Kazuo Sakurai. "The transfection efficiency of calix[4]arene-based lipids: the role of the alkyl chain length." Biomaterials Science 3, no. 2 (2015): 317–22. http://dx.doi.org/10.1039/c4bm00303a.

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Li, Shuai, Tengfei Miao, Xiaoxiao Cheng, Yin Zhao, Wei Zhang, and Xiulin Zhu. "Different phase-dominated chiral assembly of polyfluorenes induced by chiral solvation: axial and supramolecular chirality." RSC Advances 9, no. 65 (2019): 38257–64. http://dx.doi.org/10.1039/c9ra08354e.

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A, K. CHOTTAPADHYAY, GHAICHA L., G. OH S., KNIGHT J., MOADDE TEANOOSHI, and E. FRIBERG STIG. "Some Anomalies between the Surfactants comprising Linear and Branched Hydrocarbon Chains." Journal of Indian Chemical Society Vol. 70, Apr-May 1993 (1993): 353–64. https://doi.org/10.5281/zenodo.5930336.

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lCI Explosives Group Technical Centre, 801 Richelieu Boulevard, McMasterville, Quebec J31I 1T9. Canada Centre de Recherche en Photobiophysique, Universite du Quebec a Trois Rivieres, C.P. 500, Trois Rivieres. Quebec, G9A 5117, Canada Centre for Surface Science and Engineering, University of Florida, Gainesville, Fl 32611, U.S.A. Centre for Advanced Materials Processing, Clarkson University, Postdam, New York 13699-5814, U.S.A. <em>Manuscript received 25 January 1993</em> This paper deals with the differences observed in the surface properties of two types of surfactant molecules of similar hea

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38

Lin, Yakai, Yuanhui Tang, Lin Wang, and Xiaolin Wang. "Non-Isothermal Crystallization Behavior of Poly(vinylidene fluoride) in Dialkyl Phthalate Diluents during Thermally Induced Phase Separation Process." Crystals 10, no. 9 (2020): 782. http://dx.doi.org/10.3390/cryst10090782.

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The non-isothermal crystallization behavior of poly(vinylidene fluoride) (PVDF) in dialkyl phthalate diluents during the thermally induced phase separation (TIPS) process was investigated by differential scanning calorimetry (DSC) at various cooling rates. Dialkyl phthalates with different alkyl chain-length, namely dimethyl phthalate (DMP), diethyl phthalate (DEP) and dibutyl phthalate (DBP), were used as the diluent. The effects of alkyl chain-length of dialkyl phthalate and cooling rate on the non-isothermal crystallization behavior as implied by the Avrami analysis modified by Jeziorny and

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Ma, Jing, Zitong Liu, Zhijie Wang, et al. "Charge mobility enhancement for diketopyrrolopyrrole-based conjugated polymers by partial replacement of branching alkyl chains with linear ones." Materials Chemistry Frontiers 1, no. 12 (2017): 2547–53. http://dx.doi.org/10.1039/c7qm00307b.

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Inoue, S., H. Minemawari, J. Tsutsumi, et al. "Molecular Requirements for Printable Organic Semiconductors in 7-Alkyl-2-phenyl[1]benzothieno[3,2-b][1]benzothiophenes (Ph-BTBT-Cn’s)." MRS Advances 1, no. 38 (2016): 2653–58. http://dx.doi.org/10.1557/adv.2016.441.

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ABSTRACTHere we discuss requirements for high performance and solution processable organic semiconductors, by presenting a systematic investigation of 7-alkyl-2-phenyl[1]benzothieno[3,2-b][1]benzothiophenes (Ph-BTBT-Cn’s). We found that the solubility and thermal properties of Ph-BTBT-Cn’s depend systematically on the substituted alkyl-chain length n. The observed features are well understood in terms of the change of molecular packing motif with n: The compounds with n ≤ 4 do not form independent alkyl chain layers, whereas those with n ≥ 5 form isolated alkyl chain layers. The latter compoun

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Dharmapurikar, S., J. Aher, A. Puyad, G. K. Kakade, V. G. Kalalawe, and M. V. Kanetkar. "Synthesis and Characterization of Urethane Side Chain Substituted Diketopyrrolopyrrole." Journal of Scientific Research 13, no. 2 (2021): 635–42. http://dx.doi.org/10.3329/jsr.v13i2.50422.

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The synthesis of Diketopyrrolopyrrole (DPP) having secondary interaction in the side chain explores its possibility to use in electronic and sensing applications. Herein we report easy method to engineer side chains of DPP. The hydrogen bonding is introduced on the side chain by substitution of urethane side chains on Diketopyrrolopyrrole (DPPurethane).The urethane side chain comprises a branched alkyl chain with good yields and purities. The DPPurethane characterized by NMR and IR, optical properties along with energy minimized structure were studied.

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Liu, Suyi, Yasuo Norikane, and Yoshihiro Kikkawa. "Two-dimensional molecular networks at the solid/liquid interface and the role of alkyl chains in their building blocks." Beilstein Journal of Nanotechnology 14 (August 23, 2023): 872–92. http://dx.doi.org/10.3762/bjnano.14.72.

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Nanoarchitectonics has attracted increasing attention owing to its potential applications in nanomachines, nanoelectronics, catalysis, and nanopatterning, which can contribute to overcoming global problems related to energy and environment, among others. However, the fabrication of ordered nanoarchitectures remains a challenge, even in two dimensions. Therefore, a deeper understanding of the self-assembly processes and substantial factors for building ordered structures is critical for tailoring flexible and desirable nanoarchitectures. Scanning tunneling microscopy is a powerful tool for reve

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Ebata, Kazuki, Yuki Hashimoto, Kohei Ebara, et al. "Molecular-weight dependence of the formation of highly ordered lamellar structures of poly(N-dodecyl acrylamide) by humid annealing." Polymer Chemistry 10, no. 7 (2019): 835–42. http://dx.doi.org/10.1039/c8py01660g.

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Nelson, Peter N. "Chain Length and Thermal Sensitivity of the Infrared Spectra of a Homologous Series of Anhydrous Silver(I) n-Alkanoates." International Journal of Spectroscopy 2016 (February 29, 2016): 1–9. http://dx.doi.org/10.1155/2016/3068430.

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The thermal and chain length sensitivity of the infrared spectra of some solid state anhydrous silver(I) salts (n-octanoate to n-eicosanoate, inclusive) are discussed. At ambient temperature, the tilted alkyl chains, anchored to the metal planes via chelating bidentate coordination to the silver ions, are crystallized in the fully extended all-trans conformation. Interestingly, though all compounds are crystallized in a monoclinic crystal system, their lateral chain packing, van der Waals effects, and hence vibrational features are chain length-dependent. This is a direct result of electrostat

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Cave, M. R., David Farrar, and Adrian J. Wright. "Organic/Inorganic Hybrid Calcium Phosphate Biomaterials." Key Engineering Materials 361-363 (November 2007): 383–86. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.383.

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Calcium alkyl phosphates and their strontium and magnesium analogues were synthesised by the reaction of aqueous metal salts with a range of alkyl phosphates of varying chain length and were characterised by X-ray diffraction, thermogravimetric and FTIR analyses. These hybrid structures are based on alternating organic/metal phosphate regions and were found to exhibit a linear increase in interlayer separation upon increasing the length of the alkyl chain. Our analysis suggests a general formula for these phases of M(ROPO3).nH2O (where M = Ca, Sr, Mg and R = alkyl group), containing alkyl bila

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Qiu, Jun, Dongliang Liu, Yueting Wang, et al. "Comprehensive Characterization of the Structure and Gel Property of Organo-Montmorillonite: Effect of Layer Charge Density of Montmorillonite and Carbon Chain Length of Alkyl Ammonium." Minerals 10, no. 4 (2020): 378. http://dx.doi.org/10.3390/min10040378.

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In this work, the effect of layer charge density of Na-montmorillonite (Na-MT) and carbon chain length of alkyl ammonium on the structure and gel property of organo-montmorillonite (organo-MT) was studied by using X-ray diffraction (XRD), Fourier transform infrared (FTIR), thermogravimetric (TG) analysis, contact angle test, molecular dynamics (MD) simulation, and gel apparent viscosity determination experiment. The results of XRD show that Na-MT with lower layer charge density is easier to swell after intercalation of alkyl ammonium, and the basal spacing of organo-MT increases with the incre

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Tomimatsu, Yuta, Yukihiro Yoshimura, and Akio Shimizu. "Solubility of Cellulose in Binary Mixtures of 1-Alkyl-3-methylimidazolium Acetate and Dimethyl Sulfoxide: Influence of Alkyl Chain Length in the Cation." Australian Journal of Chemistry 72, no. 9 (2019): 669. http://dx.doi.org/10.1071/ch19047.

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The influence of alkyl chain length of cations on cellulose solubility in a neat imidazolium (MIM)-based ionic liquid (IL) [CnMIM][OAc] and [CnMIM][OAc]–DMSO binary system (n=0–6) was investigated. The correlation between cellulose solubility and Kamlet–Taft hydrogen bond basicity (β) was also examined. Cellulose solubility (g per mol IL) in neat [CnMIM][OAc] increased as the cation alkyl chain length decreased from 6 to 2. However, alkyl chain lengths of 1 and 0 resulted in extremely poor cellulose solubility, indicating that a chain length of 2 was optimal for dissolution of cellulose in the

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Chen, Renyuan, Caidie Xu, Yihao Lei, et al. "Facile construction of a family of supramolecular gels with good levofloxacin hydrochloride loading capacity." RSC Advances 11, no. 21 (2021): 12641–48. http://dx.doi.org/10.1039/d1ra00809a.

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A family of low molecular weight gelators with different alkyl chain lengths was constructed, having excellent gelation ability and antibiotic loading capacity. A low molecular weight hydrogelator was obtained by adjusting the length of alkyl chain.

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Reitböck, Cornelia, Eric Głowacki, and David Stifter. "Sum-Frequency Generation Vibrational Spectroscopy Investigations of Phosphonic Acids on Anodic Aluminum Oxide Films." Applied Spectroscopy 72, no. 5 (2018): 725–30. http://dx.doi.org/10.1177/0003702818756899.

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Self-assembled monolayers of alkyl phosphonic acids on anodic aluminum oxide (AlOx) surfaces are important as dielectric layers in thin film electronic devices. Assessing the properties and quality of these monolayers on amorphous AlOx is limited to a few surface-sensitive methods. In this work, we study using nonlinear optical measurements the molecular ordering in n-alkyl phosphonic acids with various alkyl chain lengths (6 to 18 carbons) deposited on AlOx and show the influence of temperature on stability and conformational order. The results demonstrate that the octadecylphosphonic acid ha

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Kleszczyńska, H., M. Oświęcimska, S. Witek, and S. Przestalski. "Inhibition of Lipid Peroxidation in the Erythrocyte Membrane by Quaternary Morpholinium Salts with Antioxidant Function." Zeitschrift für Naturforschung C 53, no. 5-6 (1998): 425–30. http://dx.doi.org/10.1515/znc-1998-5-620.

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Abstract The antioxidant activity of five new compounds from a group of quaternary ammonium salts with antioxidant function has been investigated. The effect of the compounds on the degree of lipid oxidation in the erythrocyte membrane subjected to UV radiation was studied. It was found that all the salts used decreased oxidation of the lipids in the erythrocyte membrane. The antioxidant activity of the ammonium salts studied increased with their alkyl chain length. Three compounds with the longest alkyl chains were the most active antioxidants, and their antioxidant properties were comparable

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