Oil Encapsulation Advantages of Amphiphilic Polymer-Grafted Silica Nanoparticle Systems

被引：2
|
作者：
Keller, Christopher B. [1 ]
Siqueira, Julia S. [2 ]
Grayson, Scott M. [1 ]
机构：
[1] Tulane Univ, Dept Chem, Percival Stern Hall, New Orleans, LA 70118 USA
[2] Tulane Univ, Tulane Ctr Polymer React Monitoring & Characteriz, Dept Phys, New Orleans, LA 70118 USA
来源：
ACS APPLIED POLYMER MATERIALS | 2021年 / 3卷 / 11期
关键词：
polymers; amphiphilic; grafted nanoparticles; oil encapsulation; WATER; SPILL; DISPERSANT; BEHAVIOR; EMULSIONS; TOXICITY; FATE;
D O I：
10.1021/acsapm.1c01110
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Amphiphilic-grafted nanoparticles (AGNs) composed of silica (SiO2) nanoparticle core and grafted poly(caprolactone)-block-poly[oligo(ethylene glycol) methyl methacrylate] (PCL-b-POEGMA) copolymer were previously reported in the literature with promising oil encapsulation properties. This report serves as an expansion upon that work, where crude oil uptake is thoroughly investigated through ultraviolet light absorption (UV) and differential scanning calorimetry (DSC). The effects of stirring speed and crude oil viscosity are also investigated to determine whether the AGNs follow a diffusion-based mechanism. Polyaromatic hydrocarbon (PAH) encapsulation from UV measurements suggests that these prototype AGNs approximately encapsulate their weight in crude oil and do not have a critical micelle concentration.
引用
收藏
页码：5893 / 5902
页数：10
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