Temperature-driven self-assembly of self-limiting uniform supraparticles from non-uniform unimolecular micelles

被引：8

作者：

Picco, Agustin S. ^{[1
]}

Yameen, Basit ^{[2
,3
]}

Knoll, Wolfgang ^{[4
]}

Ceolin, Marcelo R. ^{[1
]}

Azzaroni, Omar ^{[1
]}

机构：

[1] UNLP, CONICET, Inst Invest Fisicoquim Teor & Aplicadas INIFTA, CC 16 Suc 4, RA-1900 La Plata, Buenos Aires, Argentina

[2] Harvard Univ, Sch Med, Lab Nanomed & Biomat, Boston, MA 02115 USA

[3] LUMS, SBA Sch Sci & Engn, Dept Chem, Lahore 54792, Pakistan

[4] AIT, Donau City Str 1, A-1220 Vienna, Austria

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2016年 / 471卷

关键词：

Self-assembly; Supraparticles; Unimolecular micelles; Hyperbranched polymers; Supramolecular assembly; Self-limited growth; PNIPAm; BLOCK-COPOLYMERS; PHASE-TRANSITIONS; HYDRATION STATES; POLY(N-ISOPROPYLACRYLAMIDE); ENCAPSULATION; AGGREGATION; MECHANISM; WATER; CHEMISTRY; POLYMERS;

D O I：

10.1016/j.jcis.2016.03.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, the self-assembly of non-uniform unimolecular micelles constituted of a hyperbranched polyester core decorated with a corona of thermoresponsive poly(N-isopropylacrylamide) (PNIPAm) chains has been studied. As revealed by dynamic light scattering (DLS), transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS), these unimicelles form uniform supraparticles through a thermally-induced self-limited process, as well as exhibit molecular features commonly observed in PNIPAm-based gels. We believe that these results provide new insights into the application of stimuli responsive polymeric materials as versatile building blocks to build up soft supraparticles displaying well-defined dimensional characteristics. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：71 / 75

页数：5

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