Hollow particles are produced by the burying of sulfate end-groups inside particles prepared by emulsion polymerization of styrene with potassium persulfate as initiator in the absence/presence of a nonionic emulsifier

2017 ◽  
Vol 8 (45) ◽  
pp. 6972-6980 ◽  
Author(s):  
Chujuan Huang ◽  
Hiroshi Kobayashi ◽  
Mineho Moritaka ◽  
Masayoshi Okubo
Keyword(s):  
Heat Treatment ◽  
Emulsion Polymerization ◽  
Potassium Persulfate ◽  
Hollow Particles ◽  
Nonionic Emulsifier ◽  
End Groups

We resolved the longtime enigma in emulsion polymerization of styrene with K2S2O8 by showing the fact that hollow polystyrene particles were successfully prepared by heat treatment in the emulsion state.

Preparation of poly(N-vinylcarbazole) (PVK) nanoparticles by emulsion polymerization and PVK hollow particles

2009 ◽  
Vol 159 (5-6) ◽  
pp. 518-522 ◽  
Author(s):  
Su-Jung Yoon ◽  
Hyunaee Chun ◽  
Mi-Sun Lee ◽  
Nakjoong Kim
Keyword(s):  
Emulsion Polymerization ◽  
Hollow Particles

On the emulsion polymerization of styrene in the presence of a nonionic emulsifier

1999 ◽  
Vol 37 (23) ◽  
pp. 4422-4431 ◽  
Author(s):  
Shi-Yow Lin ◽  
Ignac Capek ◽  
Tien-Jung Hsu ◽  
Chorng-Shyan Chern
Keyword(s):  
Emulsion Polymerization ◽  
Nonionic Emulsifier

Characterization of Ultrafine Glassy Powder for Al-Si-Ca-P-O-F Polynary System by Liquid Precipitation

2010 ◽  
Vol 177 ◽  
pp. 433-436 ◽  
Author(s):  
G.C. Yuan ◽  
Q.G. Wu ◽  
Guo Xun Zeng ◽  
Z.Y. Ling
Keyword(s):  
Heat Treatment ◽  
Network Structure ◽  
Inorganic Compounds ◽  
Amorphous State ◽  
Precipitation Method ◽  
Hollow Particles ◽  
Heat Treated ◽  
Quenched Glass ◽  
Liquid Precipitation

The ultrafine glassy powder of Al-Si-Ca-P-O-F polynary system was prepared by liquid precipitation method with several inorganic compounds as reactants containing the ions such as Al3+, SiO32-, P3O105-, Ca2+, F-, respectively. The powder was heat-treated in the range of temperature from 773 to 1173K and its crystallized processes were ascertained. The morphology, composition, bonding state and structure, crystallized behavior of the glassy powder were characterized by means of TEM, XRD, EDAX, IR, DSC etc methods. The results show that the powder containing Al, Si, Ca, P, O, F elements belongs to typical amorphous state, and the particles appeared hollow and near spherical morphology with the size from 30 to 70nm. The hollow particles collapsed as plate like conglutination state and a series of crystallized phases CaF2, Al2SiO5, Ca2SiO4, and Ca3(PO4)2 were separated sequentially during heat treatment in the range of temperature above. The characteristics of the glassy powder are similar to those of popular melting-quenched glass of the system. The network structure of the glass was mainly formed by the tetrahedrons of [SiO4], [AlO4] and [PO4], which were linked by the oxygen atoms of the angle in the tetrahedrons.

scholarly journals Preparation of multihollow polystyrene particles by seeded emulsion polymerization using seed particles with incorporated nonionic emulsifier: effect of temperature

2008 ◽  
Vol 287 (3) ◽  
pp. 251-257 ◽  
Author(s):  
Hiroshi Kobayashi ◽  
Toyoko Suzuki ◽  
Mineho Moritaka ◽  
Emi Miyanaga ◽  
Masayoshi Okubo
Keyword(s):  
Emulsion Polymerization ◽  
Effect Of Temperature ◽  
Seeded Emulsion Polymerization ◽  
Seed Particles ◽  
Nonionic Emulsifier

Emulsion polymerization of vinyl chloride, potassium persulfate decomposition

1989 ◽  
Vol 29 (1) ◽  
pp. 329-337 ◽  
Author(s):  
Cecilia-Speranţa Georgescu ◽  
Victor Butucea ◽  
Adrians Sarbu ◽  
Adrians Ionescu ◽  
Ion Deaconescu ◽  
...  
Keyword(s):  
Emulsion Polymerization ◽  
Vinyl Chloride ◽  
Potassium Persulfate
Sign in / Sign up

Export Citation Format

Share Document