当前位置: X-MOL 学术J. Ind. Eng. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Temperature-responsive interdrop association of condensed attractive nanoemulsions
Journal of Industrial and Engineering Chemistry ( IF 5.9 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.jiec.2020.02.023
Jin Yong Lee , Minchul Sung , Hyemin Seo , Ye Jin Park , Jun Bae Lee , Song Seok Shin , Youngbok Lee , Kyounghee Shin , Jin Woong Kim

Abstract This study introduces a temperature-responsive attractive nanoemulsion (ANE) system, which is characterized by the polymer chain conformation-driven dipolar interaction across different oil droplets in an aqueous medium. To achieve this, highly stable ANEs were produced by co-assembly of amphiphilic triblock copolymers (ATCs), poly(ethylene oxide)-b-poly(e-caprolactone)-b-poly(ethylene oxide) (PEO-b-PCL-b-PEO), with lecithin at the oil-water interface. The dipolar attraction of the methoxy terminated-PEO (mPEO) of ATCs on one drop surface with the lecithin head located on the other drop surface led to the drop-to-drop association. We showed that the efficiency of this interdrop association was dominantly influenced by the chain conformation of mPEO blocks. From dense suspension rheology studies, it was demonstrated that the ANEs formed a gel-like phase below the lower critical solution temperature (LCST) of the mPEO, but transformed to a liquid-like phase above the LCST, which occurred reversibly, thus enabling the development of temperature-responsive emulsion fluids.

中文翻译:

凝聚的有吸引力的纳米乳液的温度响应互滴结合

摘要 本研究介绍了一种温度响应吸引纳米乳液 (ANE) 系统,其特点是聚合物链构象驱动的偶极相互作用在水性介质中的不同油滴之间发生。为了实现这一目标,通过两亲性三嵌段共聚物(ATC)、聚(环氧乙烷)-b-聚(ε-己内酯)-b-聚(环氧乙烷)(PEO-b-PCL- b-PEO),在油-水界面具有卵磷脂。一个液滴表面上的 ATC 的甲氧基封端的 PEO (mPEO) 与位于另一个液滴表面上的卵磷脂头的偶极吸引力导致了液滴之间的关联。我们表明,这种互点关联的效率主要受 mPEO 块的链构象影响。从致密悬浮流变学研究中,
更新日期:2020-06-01
down
wechat
bug