Results 261 to 270 of about 128,173 (288)

Suspension polymerization of itaconic acid diesters

Journal of Applied Polymer Science, 2018
ABSTRACTDimethyl itaconate and dicyclohexyl itaconate monomers are polymerized successfully for the first time via suspension polymerization. The obtained polymers possess significantly higher molecular weights and more narrow polydispersities compared to itaconate polymers prepared in solution or in bulk.
Sanjiban Chakraborty, Lin Ju, Alan A. Galuska, Robert B. Moore, S. Richard Turner   +4 more
openaire   +1 more source

Suspension graft polymerization by chain transfer

Polymer Bulletin, 1985
Poly(vinyl oxazoline ester) and poly(stearyl methacrylate) were found to be good alien polymers for grafting of methyl methacrylate by suspension polymerization whereas poly(tridecyl methacrylate) was not a good backbone. Azobisisobutyronitrile was found to be an inefficient grafting initiator where azocumene that produces highly resonance and ...
A. G. Maadhah, M. B. Amin, A. M. Usmani
openaire   +1 more source

Spark-induced agglomeration of aqueous polymeric suspensions

Journal of Colloid and Interface Science, 2005
Discharging a high-energy spark underwater creates a shock wave that dissipates through an acoustic field. Colloidal acrylate polymers suspended in water containing dissolved calcium are agglomerated as a result. The degree of agglomeration increases with the number of sparks applied and with increasing calcium content. The calcium decreases the charge
openaire   +2 more sources

Control of batch suspension polymerization reactor

Chemical Engineering Journal, 1998
The automation and control of polymerization reactors that operate in batches is quite a difficult task. The gel effect and the absence of a stable operational state are factors that determine the need for special control systems. In this study, a methodology is implemented for controlling the operation of a batch polymerization reactor, utilizing an ...
R.A.F. Machado, A. Bolzan
openaire   +1 more source

Suspension polymerization of unsaturated polyester oligomers

Polymer Engineering & Science, 1996
AbstractA study has been made of an unsaturated polyester resin prepared from maleic anhydride, phthalic anhydride and 1,2‐propene glycol. The resin is transformed by alkalization with ammonia into a water‐soluble emulsion, which was polymerized with initiators and accelerators. It was found that water acts as an inert diluent in the emulsion.
M. Natov, St. Vassileva, L. Abood
openaire   +1 more source

NANOCOMPOSITES PRODUCTION THROUGH SUSPENSION, SEMI-SUSPENSION, AND EMULSION POLYMERIZATION

Revista Contemporânea
Nanocellulose-reinforced polymeric composites can be produced in situ, where polymerization occurs in the presence of reinforcing fillers. Moreover, it can also be produced ex situ, when, the polymeric matrix is mixed with a nanocellulose suspension.
Marina Borsuk, Fábio Furtado, Heloise Sasso Teixeira, Willian Nascimento Duarte, Talita Szlapak Franco, Thais Helena Sydenstricker Flores-Sahagun   +5 more
openaire   +1 more source

Inverse suspension polymerization of sodium acrylate

Journal of Applied Polymer Science, 1997
A superwater-absorbent sodium polyacrylate was synthesized by inverse suspension polymerization, using Span60 as the dispersant, cyclohexane as the organic phase, N,N′-methylene bisacrylamide as the crosslinking agent, and potassium persulfate as the initiator.
Guojie Wang, Min Li, Xinfang Chen
openaire   +1 more source

Reaction engineering aspects of suspension polymerization

Journal of Applied Polymer Science, 1986
AbstractSuspension polymerization is used for the production of polymer particles with diameter in the range of 50–750 μm. The particle size distribution of the particles produced in batch‐suspension polymerization is calculated using a population balance model.
Antonios G. Mikos, Christos G. Takoudis, Nikolaos A. Peppas   +2 more
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Perfluorocarbon Fluids:  Universal Suspension Polymerization Media

Macromolecules, 1996
The use of perfluorocarbon (PFC) fluids such as perfluorinated alkanes as universal suspension polymerization media is described. PFC fluids are inert, stable, and immiscible with most organic compounds and with water. In utilization of these unusual immiscibility and stability properties, cross-linked copolymer beads bearing reactive functional groups
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SUSPENSION POLYMERIZATION

Journal of Macromolecular Science, Part C: Polymer Reviews, 1991
H. G. Yuan, G. Kalfas, W. H. Ray
openaire   +1 more source