Synthesis of anisotropic nanoparticles by seeded emulsion polymerization

Langmuir : the ACS Journal of Surfaces and Colloids
Eric B MockCharles F Zukoski

Abstract

Anisotropic polystyrene nanoparticles of diameters below 0.5 microm were prepared by coating the surface of cross-linked polystyrene latex particles with a thin hydrophilic polymer layer prior to swelling the particles with styrene and then initiating second-stage free-radical polymerization. Conditions were found so that all particles had uniform asymmetry. The effect of surface chemistry on the development of particle anisotropy during seeded emulsion polymerization of sub-0.5 microm diameter particles was studied. The extent and uniformity of the anisotropy of the final particles depended strongly on the presence of the hydrophilic surface coating. Systematic variation of the degree of hydrophilicity of the surface coating provided qualitative insight into the mechanism responsible for anisotropy. Conditions were chosen so that the surface free energy favored the extrusion of a hydrophobic bulge of monomer on the hydrophilic surface of the particle during the swelling phase: the presence of a hydrophilic layer on the particle surface causes this asymmetry to be favored above uniform wetting of the particle surface by the monomer. Kinetic effects, arising from the finite time required for the seed to swell with the monomer, a...Continue Reading

Citations

Apr 19, 2013·ACS Applied Materials & Interfaces·Bo PengArnout Imhof
Apr 9, 2010·Journal of the American Chemical Society·Jin-Gyu ParkEric R Dufresne
Jun 30, 2010·Journal of the American Chemical Society·Shuangxi XingHongyu Chen
Feb 12, 2009·Journal of the American Chemical Society·Martina KeerlWalter Richtering
Dec 25, 2008·Journal of the American Chemical Society·Daniela J KraftWillem K Kegel
Apr 7, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·H B EralJ M Oh
May 21, 2010·Chemical Communications : Chem Comm·D Djoumessi LekeufackP Miele
Oct 18, 2014·ACS Applied Materials & Interfaces·Sijia Wang, Ning Wu
Mar 4, 2014·ACS Applied Materials & Interfaces·Sijia WangNing Wu
Nov 28, 2013·International Journal of Pharmaceutics·Genoveva Morral-RuízMaría José García-Celma
Jul 2, 2009·The Journal of Chemical Physics·Mukta Tripathy, Kenneth S Schweizer
Feb 23, 2010·The Journal of Chemical Physics·Stephen Whitelam, Stefan A F Bon
Sep 21, 2010·The Journal of Chemical Physics·Rui Zhang, Kenneth S Schweizer
Dec 24, 2011·The Journal of Chemical Physics·Matthieu MarechalHartmut Löwen
Aug 17, 2010·The Journal of Chemical Physics·Amit GoyalOrlin D Velev
Nov 7, 2014·Journal of Materials Chemistry. C, Materials for Optical and Electronic Devices·Tao DingJeremy J Baumberg
Jan 8, 2011·Chemical Society Reviews·Etienne DuguetSerge Ravaine
Apr 26, 2012·Chemical Society Reviews·Jing HuLimin Wu
Aug 3, 2012·Chemical Communications : Chem Comm·Kisun YoonDavid A Weitz
Apr 7, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Florian Guignard, Marco Lattuada
Jan 1, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Yanan LiuWantai Yang
Apr 6, 2011·Journal of Colloid and Interface Science·Qiuyan YangLinghao He
Feb 18, 2011·Journal of Colloid and Interface Science·Zhen MengXudong Jia
Jul 30, 2015·Journal of the American Chemical Society·Deyu LiuGalen D Stucky
Dec 12, 2007·Angewandte Chemie·Andreas WaltherAxel H E Müller
Mar 15, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Joohyung LeeSven Holger Behrens
Oct 5, 2010·Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology·Kristin B CederquistChristine D Keating
Apr 13, 2012·Macromolecular Rapid Communications·Fangfang ChuMatthias Ballauff
May 5, 2012·Macromolecular Rapid Communications·Sebastian Seiffert
Oct 2, 2014·Macromolecular Rapid Communications·Patrick D Haller, Malancha Gupta
Aug 8, 2015·Physical Chemistry Chemical Physics : PCCP·Thomas TroppenzRené van Roij
Apr 22, 2011·Journal of Colloid and Interface Science·Junjun TanDejun Sun

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of the American Chemical Society
Jin-Woong KimDavid A Weitz
Journal of the American Chemical Society
Daniela J KraftWillem K Kegel
Journal of the American Chemical Society
Jin-Gyu ParkEric R Dufresne
Journal of the American Chemical Society
Jason P RollandJoseph M Desimone
Journal of the American Chemical Society
Jianping GeYadong Yin
© 2022 Meta ULC. All rights reserved