A simple model for the semicontinuous heterophase polymerization: Ethyl methacrylate as a case example
Por:
Alvarado, Abraham G., Hernandez-Montelongo, Rosaura, Rabelero, Martin, Perez-Carrillo, Lourdes A., Puig, Jorge E., Lopez-Serrano, Francisco
Publicada:
1 feb 2020
Ahead of Print:
1 nov 2019
Resumen:
A simple but comprehensive model considering homogeneous and micellar
nucleation, coagulation, entry of radicals to particles and to micelles
and radicals' exit from particles, is presented. The model is validated,
in a starved semicontinuous heterophase polymerization of ethyl
methacrylate, at three monomer addition rates. The model accurately
describes the overall and instantaneous conversion, the average particle
density and diameter, and the number and weight average molar masses
evolutions over time. It is found that even though the average number of
radicals is much smaller than 0.5, the system is not 0-1. An empirical
function was used to describe the gel effect. The homogeneous nucleation
was the prevailing mechanism for particle formation and large exit rates
of radicals were observed. POLYM. ENG. SCI., 2019. (c) 2019 Society of
Plastics Engineers
Filiaciones:
Alvarado, Abraham G.:
Departamento de Ingeniería Mecánica, Universidad de Guadalajara, Boul. M. García-Barragán # 1451, Guadalajara, JAL 44430, Mexico
Univ Guadalajara, Dept Ingn Mecan, Blvd M Garcia Barragan 1451, Guadalajara 44430, Jal, Mexico
Hernandez-Montelongo, Rosaura:
Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451, Guadalajara, JAL 44430, Mexico
Univ Guadalajara, Dept Ingn Quim, Blvd M Garcia Barragan 1451, Guadalajara 44430, Jal, Mexico
Rabelero, Martin:
Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451, Guadalajara, JAL 44430, Mexico
Univ Guadalajara, Dept Ingn Quim, Blvd M Garcia Barragan 1451, Guadalajara 44430, Jal, Mexico
Perez-Carrillo, Lourdes A.:
Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451, Guadalajara, JAL 44430, Mexico
Univ Guadalajara, Dept Ingn Quim, Blvd M Garcia Barragan 1451, Guadalajara 44430, Jal, Mexico
Puig, Jorge E.:
Departamento de Ingeniería Química, Universidad de Guadalajara, Boul. M. García-Barragán # 1451, Guadalajara, JAL 44430, Mexico
Univ Guadalajara, Dept Ingn Quim, Blvd M Garcia Barragan 1451, Guadalajara 44430, Jal, Mexico
Lopez-Serrano, Francisco:
Departamento de Ingeniería Química, Facultad de Química, Universidad Nacional Autónoma de México. Ciudad Universitaria. Cd. Mx., México City, 04510, Mexico
Univ Nacl Autonoma Mexico, Fac Quim, Dept Ingn Quim, Ciudad Univ Cd Mx, Mexico City 04510, DF, Mexico
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