Efficient synthesis of narrowly dispersed amphiphilic double-brush copolymers through the polymerization reaction of macromonomer micelle emulsifiers at the oil–water interface

2016 ◽  
Vol 7 (27) ◽  
pp. 4476-4485 ◽  
Author(s):  
Heng Li ◽  
Han Miao ◽  
Yong Gao ◽  
Huaming Li ◽  
Daoyong Chen
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Radical Polymerization ◽  
Pickering Emulsion ◽  
Polymerization Reaction ◽  
Water Interface ◽  
Efficient Synthesis ◽  
Oil Water

Narrowly dispersed amphiphilic PMA-g-PMMA/PDMA DBCs with high molecular weight were efficiently synthesized by Pickering emulsion template directed radical polymerization of macromonomer micelles.

Polymerization of alkyl diazoacetates initiated by the amidinate/Pd system: efficient synthesis of high molecular weight poly(alkoxycarbonylmethylene)s with moderate stereoregularity

2017 ◽  
Vol 8 (27) ◽  
pp. 4030-4037 ◽  
Author(s):  
Hiroaki Shimomoto ◽  
Junya Kawamata ◽  
Hirokazu Murakami ◽  
Kazuki Yamashita ◽  
Tomomichi Itoh ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Efficient Synthesis ◽  
New System ◽  
High Molecular Weight Poly

The initiating ability of a new system, amidinate/Pd, for the polymerization of diazoacetates is described.

Synthesis of high-molecular-weight polyamine by radical polymerization ofN,N-diallyl-N-methylamine

2000 ◽  
Vol 49 (3) ◽  
pp. 431-437 ◽  
Author(s):  
Yu. A. Vasilieva ◽  
N. A. Kleshcheva ◽  
G. L. Gromova ◽  
A. I. Rebrov ◽  
M. P. Filatova ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Radical Polymerization

scholarly journals Preparation of Pickering emulsions through interfacial adsorption by soft cyclodextrin nanogels

2015 ◽  
Vol 11 ◽  
pp. 2355-2364 ◽  
Author(s):  
Shintaro Kawano ◽  
Toshiyuki Kida ◽  
Mitsuru Akashi ◽  
Hirofumi Sato ◽  
Motohiro Shizuma ◽  
...  
Keyword(s):  
Colloidal Particles ◽  
Adsorption Property ◽  
Building Blocks ◽  
Pickering Emulsion ◽  
Surface Active Property ◽  
Water Interface ◽  
Pickering Emulsions ◽  
Surface Active ◽  
Oil Water ◽  
Interfacial Adsorption

Background: Emulsions stabilized by colloidal particles are known as Pickering emulsions. To date, soft microgel particles as well as inorganic and organic particles have been utilized as Pickering emulsifiers. Although cyclodextrin (CD) works as an attractive emulsion stabilizer through the formation of a CD–oil complex at the oil–water interface, a high concentration of CD is normally required. Our research focuses on an effective Pickering emulsifier based on a soft colloidal CD polymer (CD nanogel) with a unique surface-active property. Results: CD nanogels were prepared by crosslinking heptakis(2,6-di-O-methyl)-β-cyclodextrin with phenyl diisocyanate and subsequent immersion of the resulting polymer in water. A dynamic light scattering study shows that primary CD nanogels with 30–50 nm diameter assemble into larger CD nanogels with 120 nm diameter by an increase in the concentration of CD nanogel from 0.01 to 0.1 wt %. The CD nanogel has a surface-active property at the air–water interface, which reduces the surface tension of water. The CD nanogel works as an effective Pickering emulsion stabilizer even at a low concentration (0.1 wt %), forming stable oil-in-water emulsions through interfacial adsorption by the CD nanogels. Conclusion: Soft CD nanogel particles adsorb at the oil–water interface with an effective coverage by forming a strong interconnected network and form a stable Pickering emulsion. The adsorption property of CD nanogels on the droplet surface has great potential to become new microcapsule building blocks with porous surfaces. These microcapsules may act as stimuli-responsive nanocarriers and nanocontainers.

Defining the characteristics of spherical Janus particles by investigating the behavior of their corresponding particles at the oil/water interface in a Pickering emulsion

2016 ◽  
Vol 38 (7) ◽  
pp. 985-991 ◽  
Author(s):  
Esmail Sharifzadeh ◽  
Mehdi Salami-Kalajahi ◽  
Mahdi Salami Hosseini ◽  
Mir Karim Razavi Aghjeh ◽  
Saeed Najafi ◽  
...  
Keyword(s):  
Pickering Emulsion ◽  
Janus Particles ◽  
Water Interface ◽  
Oil Water
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