Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 502, Issue -, Pages 1-5Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2016.04.048
Keywords
Soap-free emulsion polymerization; Size control; Oil-soluble initiator; Water-soluble initiator
Categories
Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan [25420817]
- Grants-in-Aid for Scientific Research [25420817] Funding Source: KAKEN
Ask authors/readers for more resources
The soap-free emulsion polymerization of styrene by an oil-soluble initiator, 2,2'-azobis(2-methylpropionitrile) (AIBN), with a water-soluble initiator, 4,4'-azobis(4-cyanovaleric acid) (V-501), was conducted in water to control the size of the synthesized polymeric particles. The particle size and surface potential were monitored as concentration of V-501 used for the polymerization was varied. When the V-501 concentration was increased, the particle size increased because V-501 was a weak acid and reduced the surface potential, thereby promoting particle growth through coagulation. Additionally, V-501 can also function as a radical initiator, increasing the efficiency of the polymerization reaction and, thus, the number concentration of the particles. (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available