In this work we apply a decomposition technique to address the simultaneous scheduling and optimal control problem of multi-grade polymerization reactors. The simultaneous scheduling and control (SSC) problem is reformulated using Lagrangean Decomposition as presented by Guignard and Kim1. The resulting model is decomposed into scheduling and control subproblems, and solved using a heuristic ap...

INTRODUCTION Enzymatic polymerization has been extensively developed over the past two decades.1–7 In particular, horseradish peroxidase (HRP) has been used for enzymatic oxidative polymerization of phenolic compounds. Dordick and co-workers8,9 reported HRP-catalyzed polymerization of arbutin, a glucose-bearing phenol derivative. Water-soluble polyarbutins with molecular weight (Mn) in the rang...

With the aim of developing a low-cost and efficient visible-light-driven photocatalyst for radical polymerization, iron-chelating polyimide networks ([email protected]) was fabricated by firstly synthesizing photoactive melamine-containing (MPI) then incorporating Fe(III) cations into polymer networks. [email protected] exhibits wide absorption spectrum ranging from 220 to 1250 nm 3.5 times hig...

in this research, the removal of malachite green dye from textile wastewaters using polyaniline coated onto sawdust (pani/sd) has been investigated. ammonium peroxodisulphate was used as chemical oxidant for polymerization of polyaniline directly on the surface of sawdust. the effects of some important parameters such as ph, initial concentration, sorbent dosage, exposure time and temperature o...