Self-aggregation of poly(butadiene)-b-poly (2-vinylpyridine)-b-polyethylene oxide) triblock copolymers in heptane studied by viscometry and dynamic light scattering

被引：5

作者：

Lerch, Jean-Philippe ^{[1
]}

Atanase, Leonard-Ionut ^{[2
,3
]}

Purcar, Violeta ^{[4
]}

Riess, Gerard ^{[5
]}

机构：

[1] Du Pont de Nemours, SHE Dept, 82 Rue Wittelsheim, F-68701 Cernay, France

[2] Apollonia Univ, Fac Dent Med, 2 Muzicii St, Iasi 700399, Romania

[3] Res Inst Academician Ioan Haulica, 2 Muzicii St, Iasi 700399, Romania

[4] Natl Res & Dev Inst Chem & Petrochem ICECHIM, Polymer Dept, Splaiul Independentei 202, Bucharest 060021, Romania

[5] Univ Haute Alsace, LPIM, F-68093 Mulhouse, France

来源：

COMPTES RENDUS CHIMIE | 2017年 / 20卷 / 07期

关键词：

Triblock copolymers; Self-aggregation; Organic medium; Heptane; Aggregation number; Nanoparticles; SHELL-CORONA MICELLES; BLOCK-COPOLYMERS; ABC; MICELLIZATION; WATER;

D O I：

10.1016/j.crci.2017.03.005

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Poly(butadiene)-b-poly(2-vinylpyridine)-b-poly(ethylene oxide) (PB-P2VP-PEO) triblock copolymers of various compositions and molecular weights were prepared by sequential anionic polymerization. Their micellization behavior was examined in heptane, which is a selective solvent for PB whereas P2VP and PEO are insoluble. Dynamic light scattering and viscometry were used to determine the basic micellar characteristics, such as aggregation number, micellar sizes, and polydispersity, which were correlated to the molecular characteristics of the copolymers. Such ABC triblock copolymers form structured micelle-like nanoparticles having a core shell morphology with hydrodynamic diameters in the range of 45-75 nm. (C) 2017 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

引用

页码：724 / 729

页数：6

共 12 条

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