We study the control of a solution copolymerization reactor using a model predictive control algorithm based on multiple piecewise linear models.
Using hydrophobic acrylic acid-2-ethylhexyl ester (AAEHE) as a comonomer of methacrylic acid (MAA), a series of hydrophobically modified (HM) poly methacrylic acid) (PMAA HMPMAAAA) hydrogels were prepared by UV solution copolymerization and studied as controlled-release matrices.
Since the blends of CR and PAMA were incompatible regardless of the different alkyl groups, copolymers of chloroprene and ethyl methacrylate (poly CP-co-EMA)), isobutyl methacrylate (poly CP-co-EMAA)) and glycidyl methacrylate (poly CP-co-EMA)) were prepared as compatisobutyls by radical solution copolymethacrylate
Syndiotacticity-rich low molecular weight (LMW) poly vinyl alcohol) (PVA) was synthesized by solution copolymerization of vinyl pivalate (VPi) and vinyl acetate (VAc) with various monomer ratios in tetrahydrofuran at low temperature using 2,2′-azobis(2,4-dimethylvaleronitrile) (ADMVN) as an initiator and successive saponification of copoly VPi/VAc).
A functional monomer containing the sodium sulfonate group, sodium 2-acrylamide-2-methylpropane sulfonate (SAMPS), the chemical formula being shown below, has been found useful for the production of modified poly vinyl alcohol) containing the sodium sulfonate group, −SO3Na, in the molecular chain by solution copolymerization with vinyl acetate and alcoholysis.
Graft copolymerization of 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and itaconic acid (IA) onto sodium lignosulfonate (LS) was performed using potassium persulfate as an initiator by free radical aqueous solution copolymerization.
Using 2-acrylamido-2-methyl propane sulfonic acid, acrylamide, diallyl dimethyl ammonium chloride, and itaconic acid, a new fluid loss additive which has excellent ability to control fluid loss is synthesized by free radical aqueous solution copolymerization.
To validate the model, the in situ inhibited free radical solution copolymerization of isobutyl methacrylate (i-BMA) with lauryl methacrylate (LMA) is studied by differential scanning calorimetery (DSC).
The solution copolymerization of styrene/butyl acrylate in toluene was monitored off-line using an ATR-FTIR probe.
Maleic anhydride-grafted polysulfone (PSF-g-MAH) was prepared by copolymerization in a solution.
