香精分子在十二烷基硫酸钠胶束中的分配与定位
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- 英文论文题名：Modulation of partition and localization of perfume molecules in sodium dodecyl sulfate micelles
- 论文作者：范雅珣 ; 唐海秋 ; Ross Strand ; 王毅琳
- 英文论文作者：Yaxun Fan ; Haiqiu Tang ; Ross Strand ; Yilin Wang ; Key Laboratory of Colloid and Interface Science ; Beijing National Laboratory for Molecular Sciences (BNLMS) ; Institute of Chemistry ; Chinese Academy of Sciences ; Procter & Gamble Technology (Beijing) Co. Ltd
- 年：2016
- 作者机构：中国科学院化学研究所;北京宝洁技术有限公司;
- 论文关键词：香精 ; 十二烷基硫酸钠 ; 分配 ; 定位
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十一分会：胶体与界面化学
- 语种：中文
- 分类号：O647.2
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十一分会 ; 胶体与界面化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：141k
- 原文格式：D
- 会议级别：全国
摘要
香精是家庭或个人护理产品、以及饮料中的重要组成。通常认为少量的香精分子对水溶性的产品配方影响较小,而事实上香精分子可与表面活性剂分子发生较强的相互作用并改变含表面活性剂体系的相行为及配方的稳定性。目前已发现并合成出种类较多的香精分子,而它们都有可能对表面活性剂的自聚集行为产生影响~([1])。香精分子的相对亲疏水性通常作为香精的分类标准,并近似由香精在辛烷和水中的平衡浓度比(logP)表示。表面活性剂和香精分子之间的相互作用的研究角度通常分为蒸发测定、香精溶解性及香精分子的在表面活性剂胶束中的定位~([2])等。本工作研究了覆盖较大logP范围的香精分子对十二烷基硫酸钠(SDS)胶束自聚集行为的影响。结果表明香精分子的亲疏水性对SDS胶束的表面电荷、尺寸和聚集数有显著的影响。热力学参数也表明中等logP的香精与胶束的结合更为自发,香精存在下SDS胶束化表现为熵驱动的过程。本文将有助于加深对香精与表面活性剂之间相互作用的理解,更为精确地估计香精对表面活性剂的影响,从而推动日化产品配方的设计与改进。
Perfumes are very important ingredients in home and personal care products,or even beverages.A small amount of perfume can give rise to a great range of interactions with surfactants,and alter the phase behavior of surfactant-based systems and formulation stability.Their relative hydrophilicity/hydrophobicity is often used as classify criterion,and approximately characterized by the ratio of the concentrations of perfumes in octanol and water in equilibrium,i.e.,logP.The interaction between surfactants and perfumes has been studied from various aspects,including evaporation measurement,perfume solubilization and localization of perfume molecules in surfactant micelles.In the present work,effects of a broad variety of perfume molecules on self-assembly of sodium dodecyl sulfate(SDS) have been investigated.The results indicate that the surface charge,size and aggregation number of the SDS micelles strongly depend on the hydrophobicity/hydrophilicity degree as well as molecular conformation of perfume molecules.
Perfumes are very important ingredients in home and personal care products,or even beverages.A small amount of perfume can give rise to a great range of interactions with surfactants,and alter the phase behavior of surfactant-based systems and formulation stability.Their relative hydrophilicity/hydrophobicity is often used as classify criterion,and approximately characterized by the ratio of the concentrations of perfumes in octanol and water in equilibrium,i.e.,logP.The interaction between surfactants and perfumes has been studied from various aspects,including evaporation measurement,perfume solubilization and localization of perfume molecules in surfactant micelles.In the present work,effects of a broad variety of perfume molecules on self-assembly of sodium dodecyl sulfate(SDS) have been investigated.The results indicate that the surface charge,size and aggregation number of the SDS micelles strongly depend on the hydrophobicity/hydrophilicity degree as well as molecular conformation of perfume molecules.
引文
[1]Friberg,S.E.Adv.Colloid Interface Sci.1998,75,181.
[2](a)Lloyd,N.W.;Kardaras,E.;Ebeler,S.E.;Dungan,S.R.J.Phys.Chem.B 2011,115,14484.(b)Tokuoka,Y.;Uchiyama,H.;Abe,M.;Christian,S.D.Langmuir 1995,11,725.(c)Fischer,E.;Fieber,W.;Navarro,C.;Sommer,H.;Benczédi,D.;Velazco,M.I.;Sch?nhoff,M.J.Surfactants Deterg.2009,12,73.(d)Bradbury,R.;Penfold,J.;Thomas,R.K.;Tucker,I.;Petkov,J.;Jones,C.;Grillo,I.Langmuir 2013,29,3234.
[2](a)Lloyd,N.W.;Kardaras,E.;Ebeler,S.E.;Dungan,S.R.J.Phys.Chem.B 2011,115,14484.(b)Tokuoka,Y.;Uchiyama,H.;Abe,M.;Christian,S.D.Langmuir 1995,11,725.(c)Fischer,E.;Fieber,W.;Navarro,C.;Sommer,H.;Benczédi,D.;Velazco,M.I.;Sch?nhoff,M.J.Surfactants Deterg.2009,12,73.(d)Bradbury,R.;Penfold,J.;Thomas,R.K.;Tucker,I.;Petkov,J.;Jones,C.;Grillo,I.Langmuir 2013,29,3234.