Nonequilibrium morphology development in seeded emulsion polymerization. V. The effect of crosslinking agent

2006 ◽  
Vol 102 (3) ◽  
pp. 2043-2054 ◽  
Author(s):  
Jeffrey M. Stubbs ◽  
Donald C. Sundberg
Keyword(s):  
Emulsion Polymerization ◽  
Crosslinking Agent ◽  
Seeded Emulsion Polymerization ◽  
Morphology Development

Effects of Continuous Phase and Crosslinking Agent on the Rheological Behaviors and Properties of Cationic Poly(urethane-acrylate) Emulsifier-Free Microemulsions

2018 ◽  
Vol 18 (12) ◽  
pp. 8419-8425 ◽  
Author(s):  
Guiqiang Fei ◽  
Yu Zhang ◽  
Xia Wang ◽  
Xiaorui Li ◽  
Haihua Wang
Keyword(s):  
Emulsion Polymerization ◽  
Rheological Behavior ◽  
Crosslinking Agent ◽  
Reaction System ◽  
Continuous Phase ◽  
Urethane Acrylate ◽  
Seeded Emulsion Polymerization ◽  
Zero Shear Viscosity ◽  
Newtonian Behavior

Cationic poly(urethane-acrylate) emulsifier-free microemulsions are prepared by seeded emulsion polymerization (SPUA) or in-situ emulsion polymerization (IPUA) with (a) or without (b) crosslinking agent hydroxyethyl acrylate (HEA). Furthermore, no surfactant is introduced into the reaction system. The effect of continuous phase and HEA on the rheological behavior and properties of microemulsions are studied. The results show that IPUA using vinylmonomers as the continuous phase and with HEA (IPUAMB-b) has the highest ζ value, lowest coagulation ratio, smallest particle size of 48 nm and apparent core–shell structures. Rheological research has concluded that the zero-shear viscosity of IPUAB-b and IPUAM-b emulsion is 6.03×102 and 7.89 Pa·s, respectively, and presents pseudoplastic behavior. However, IPUAMB-b and SPUA-b display Newtonian behavior with η0 of 0.136 Pa·s and 0.0823 Pa·s, respectively. PUA emulsions display similar rheological behavior when NMP is replaced by the mixture of MMA and BA.

Colloidal templating: seeded emulsion polymerization of a soluble shell with a controlled alkyne surface density

Soft Matter ◽  
2012 ◽  
Vol 8 (20) ◽  
pp. 5493 ◽  
Author(s):  
Ryan D. Roeder ◽  
Parul Rungta ◽  
Volodymyr Tsyalkovskyy ◽  
Yurii Bandera ◽  
Stephen H. Foulger
Keyword(s):  
Emulsion Polymerization ◽  
Surface Density ◽  
Seeded Emulsion Polymerization ◽  
Colloidal Templating

scholarly journals Synthesis of double-responsive magnetic latex particles via seeded emulsion polymerization using macroRAFT block copolymers as stabilizers

2020 ◽  
Vol 11 (3) ◽  
pp. 648-652 ◽  
Author(s):  
Thiago Rodrigues Guimarães ◽  
Muriel Lansalot ◽  
Elodie Bourgeat-Lami
Keyword(s):  
Block Copolymers ◽  
Emulsion Polymerization ◽  
Magnetic Response ◽  
Seeded Emulsion Polymerization ◽  
Latex Particles ◽  
Magnetic Carriers

We report the synthesis of magnetic latex particles decorated with double-responsive PDMAEMA segments with fast magnetic response via RAFT-assisted emulsion polymerization, highlighting this strategy as a powerful tool for magnetic carriers design.

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