磷脂辅助合成稳定的含氟胶体颗粒及其成膜

Phospholipid-assisted synthesis of stable F-containing colloidal particles and their film formation.

作者信息

Singh Anuradha, Dreher W Reid, Urban Marek W

机构信息

School of Polymers and High Performance Materials, Shelby F. Thames Polymer Science Research Center, The University of Southern Mississippi, Hattiesburg, Mississippi 39406, USA.

出版信息

Langmuir. 2006 Jan 17;22(2):524-7. doi: 10.1021/la052528t.

DOI:10.1021/la052528t

PMID:16401097

Abstract

This letter illustrates for the first time the preparation of p-methyl methacrylate/n-butyl acrylate/heptadecafluorodecyl methacrylate (p-MMA/nBA/FMA) colloidal dispersions containing up to 15% w/w FMA, which is accomplished by the utilization of biologically active phospholipids (PLs) and ionic surfactants. The use of monomer-starved conditions during emulsion polymerization and the utilization of 1,2-dilauroyl-sn-glycero-3-phosphocholine (DLPC), sodium dodecyl sulfate (SDS), and phosphoric acid bis(tridecafluoro-octyl) ester ammonium salt (FSP) as surfactants, which function as transfer and dispersing agents, facilitate a suitable environment for the polymerization of p-MMA/nBA/FMA colloidal dispersions that exhibit nonspherical particle morphologies. Such nonspherical particles upon coalescence form phase-separated films with unique surface properties.

摘要

这封信首次阐述了含高达15%（w/w）甲基丙烯酸十七氟癸酯（FMA）的聚甲基丙烯酸甲酯/丙烯酸正丁酯/甲基丙烯酸十七氟癸酯（p-MMA/nBA/FMA）胶体分散体的制备方法，该方法是通过利用生物活性磷脂（PLs）和离子表面活性剂来实现的。在乳液聚合过程中采用单体饥饿条件，并使用1,2-二月桂酰-sn-甘油-3-磷酸胆碱（DLPC）、十二烷基硫酸钠（SDS）和双（十三氟辛基）磷酸酯铵盐（FSP）作为表面活性剂，这些表面活性剂兼具转移剂和分散剂的作用，为具有非球形颗粒形态的p-MMA/nBA/FMA胶体分散体的聚合提供了适宜的环境。这种非球形颗粒在聚结时形成具有独特表面性质的相分离膜。