Review Papers (Misc) - MURAKAMI Ryo
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Stabilization of Emulsions by Particle Mixtures Invited
Ryo Murakami
Oleoscience 24 ( 2 ) 49 - 55 2024.2
Authorship：Lead author, Corresponding author Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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液体のビー玉をつくる ―微粒子による流体のカプセル化―
村上良
化学と教育 66 ( 8 ) 398 - 401 2018.8
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：公益社団法人日本化学会
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Fluid Encapsulation by Particle Adsorption at Fluid Interfaces
71 ( 4 ) 344 - 344 2018.3
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings)
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Powderization of Liquids by Particulate Materials
53 ( 8 ) 509 - 512 2016.9
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings)
Other Link： https://www.jstage.jst.go.jp/article/sptj/53/8/53_509/_article/-char/ja/
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液体を粉にする～ドライリキッドの安定化～
村上 良
MATERIAL STAGE 14 66 - 68 2014.9
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：技術情報協会
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空気中での液体のカプセル化 ～ドライリキッド・リキッドマーブルの安定化～
村上 良
Colloid &Interface Communication 38 15 - 16 2014
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本化学会コロイドおよび界面化学部会
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コロイド粒子のソフト界面吸着による分散系の安定化
村上良
化学と工業 64 ( 3 ) 238 - 239 2011.3
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本化学会
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微粒子による空気‐液体分散系の安定化
村上良
オレオサイエンス 10 ( 8 ) 285 - 290 2010.8
Authorship：Lead author Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本油化学会
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高分子微粒子で安定化されたエマルション
藤井秀司、村上良
オレオサイエンス 9 ( 11 ) 511 - 517 2009.11
Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本油化学会
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微粒子で安定化された泡
藤井秀司、村上良
表面技術 59 ( 1 ) 33 - 38 2008.1
Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：表面技術協会
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Smart particles as foam and liquid marble stabilizers
Fujii, S., Murakami, R.
KONA Powder and Particle Journal 26 153 - 166 2008.1
Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Hosokawa Powder Technology Foundation
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界面活性物質油溶液の恒温滴定カロリメトリー
村上良，高田陽一，荒殿誠
熱測定 30 ( 4 ) 189 - 195 2003.8
Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：日本熱測定学会
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Thermodynamic study on the adsorption of oleyl alcohol at oil/water interface
Y Takata, R Murakami, J Taura, T Maki, K Mitsutake, M Suzuki, T Takiue, M Aratono
LANGMUIR 18 ( 20 ) 7544 - 7548 2002.10
Publisher：AMER CHEMICAL SOC
The interfacial tension gamma of the hexane solution of oleyl alcohol against water was measured as a function of temperature T and molality m(1) under atmospheric pressure. The entropy change associated with the adsorption triangles was dependent on both temperature and molality below about 35 mmol kg(-1) while independent of both those above about 35 mmol kg-1. The former is responsible for the contact of the double bond of oleyl alcohol with water at the hexane/water interface, but the latter is responsible for the similarity of the aggregates, which are formed by the alcohol molecules in their hexane solution, to the adsorbed films in the situation that hydrogen bonds are formed between the alcohol molecules. Considering the aggregate formation and the thermodynamic equation used, it was found that the decrease of the interfacial density Gamma(1)(H) at a high concentration region is an artifact introduced by the assumption of the ideal solution at that region. Furthermore, by drawing the interfacial pressure T versus the mean area per adsorbed molecule A curves, the onset of the phase transition comes out at high temperatures and also oleyl alcohol does not form the condensed film because of the steric hindrance of the hydrocarbon chain of the alcohol molecules. The experiments by using other oils suggested that the alkene systems obviously exhibit the phase transition. Taking notice of the affinty between water and pi-electrons and the occupied area just below and above the phase transition, it was concluded that the phase transition in this case is accompanied by the detachment of the double bond of the alcohol molecules from the interface, and therefore the driving force is the water-a-electrons interaction.
DOI： 10.1021/la020269r
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Calorimetric studies of aggregate formation of oleyl alcohol in oil solutions
R Murakami, Y Takata, A Ohta, M Suzuki, T Takiue, M Aratono
JOURNAL OF PHYSICAL CHEMISTRY B 106 ( 25 ) 6548 - 6553 2002.6
Publisher：AMER CHEMICAL SOC
The enthalpies of mixing of oleyl alcohol and oils (cyclohexane, benzene) were measured as a function of the concentration at fixed temperatures by the use of a high-accuracy isothermal calorimeter. By applying the thermodynamic equations to the enthalpy of mixing, the differential enthalpies of solution of oleyl alcohol in the oil solution were evaluated. The enthalpies are positive and decrease with increasing concentration in both oils, indicating that the aggregate formation is exothermic. However, the enthalpy of aggregate formation in the cyclohexane solution is much larger than that in the benzene solution and has a magnitude corresponding to the hydrogen bond formation, which was supported by the infrared spectra. Furthermore, the infrared spectra of the benzene solution showed that the hydroxyl group of alcohol attractively interacts with benzene molecule. These experimental results suggested that oleyl alcohol molecules associate themselves through the hydrogen bond formation between the hydroxyl groups in the cyclohexane solution, whereas with keeping interaction between hydroxyl group and benzene molecule in the benzene solution.
DOI： 10.1021/jp011466m
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Calorimetric study of micellar solutions of pentaethylene glycol monooctyl and monodecyl ethers
A Ohta, R Murakami, T Takiue, N Ikeda, M Aratono
JOURNAL OF PHYSICAL CHEMISTRY B 104 ( 35 ) 8592 - 8597 2000.9
Publisher：AMER CHEMICAL SOC
The enthalpy of micelle formation of C8ES and C10E5 were obtained at seven temperatures from 283.15 to 313.15 K by measuring the enthalpies of mixing of C8E5 in water and of aqueous solution of C10E5 in water, respectively. Appropriate thermodynamic treatment of the enthalpy of mixing for the latter case was derived and checked. The enthalpies of micelle formation of C8E5 and C10E5 are positive and decrease with increasing temperature. The increase of enthalpy of C8E5 accompanied by micelle formation is superior to that of C10E5 at higher temperature than 283.15 K, while the gap of heat capacity of C10E5 between monomeric and micellar states is larger than that of C8E5, These results might be due to the differences of the hydration of hydrocarbon in monomer state and of the molecular packing in micellar state between C8E5 and C10E5. The two kinds of compensation temperatures were proposed.
DOI： 10.1021/jp001514n