Catalyst fragmentation during propylene polymerization. III: Bulk polymerization process simulation

1991 ◽  
Vol 31 (12) ◽  
pp. 886-903 ◽  
Author(s):  
Monica A. Ferrero ◽  
Mario G. Chiovetta
Keyword(s):  
Process Simulation ◽  
Bulk Polymerization ◽  
Propylene Polymerization ◽  
Polymerization Process

scholarly journals Fuzzy control for continuous bulk polymerization process for polystyrene.

1991 ◽  
Vol 17 (1) ◽  
pp. 127-134
Author(s):  
Shigeru Hagimori ◽  
Chiaki Kuroda ◽  
Masaru Ishida
Keyword(s):  
Fuzzy Control ◽  
Bulk Polymerization ◽  
Polymerization Process

Designing and Operation of a Continuous Bulk Polymerization Process to Obtain Pure Polymers

1988 ◽  
Vol 2 (3-4) ◽  
pp. 198-203
Author(s):  
S. Omi ◽  
I. Iwata ◽  
K. Inubuse ◽  
M. Iso ◽  
M. Suka
Keyword(s):  
Bulk Polymerization ◽  
Polymerization Process

Optimal Descriptor Based QSPR Models for Catalytic Activity of Propylene Polymerization

2018 ◽  
Vol 3 (2) ◽  
pp. 36-48
Author(s):  
Sanija Begum ◽  
P. Ganga Raju Achary
Keyword(s):  
External Validation ◽  
Propylene Polymerization ◽  
Polymerization Process ◽  
Input Line ◽  
Qspr Model ◽  
Monte Carlo Optimization ◽  
Catalytic Activities ◽  
Optimal Descriptor ◽  
Validation Set

A heterogeneous Ziegler–Natta (ZN) catalyst is an important catalyst in the field of the polypropylene polymerization industry. The role of electron donors has been crucial in the ZN catalyzed polypropylene polymerization process. In this article, quasi-SMILES-based QSPR models are elaborated for the prediction of catalytic activities. The representations of the molecular structure by quasi-simplified molecular input line entry system were the basis to build the desired QSPR model. These models were developed by means of the Monte Carlo optimization involving the available methods classic scheme (CS), balance of correlations (BC) and balance of correlation with ideal slopes (BCIS). The best QSPR model showed r2 = 0.813 (for external validation set), rm2 (avg)=0.73 and ∆rm2= 0.03.

Effects of Modified Graphite on Thermal Properties of Modified Graphite/CA-MA/PMMA Composite for Latent Heat Thermal Energy Storage

2012 ◽  
Vol 562-564 ◽  
pp. 401-404
Author(s):  
Duo Meng
Keyword(s):  
Thermal Conductivity ◽  
Mechanical Test ◽  
Capric Acid ◽  
Bulk Polymerization ◽  
Polymerization Process ◽  
Transient Hot Wire ◽  
Hot Wire ◽  
Storage Performance ◽  
Wire Method ◽  
Absorbing Material

The aim of this work is to prepare a kind of polymer-based form-stable PCM with a higher thermal conductivity. Graphite powders modified by titanate coupling agent were chosen as the thermal conductivity enhancer. The modified graphite(MG) and capric acid(CA)-myristic acid(MA) eutectic as thermal absorbing material were blended into the poly-methyl methacrylate (PMMA) serving as supportive matrix during the bulk-polymerization process of MMA. The composite PCMs with different MG mass fraction (2%, 5%, 7%, 10% and 15%) were characterized by SEM, DSC technique, volume expansibility measurement and mechanical test. Thermal conductivities of the composites were measured by transient hot-wire method. The results indicate that the MG/CA-MA/PMMA composites keep the good thermal storage performance while the thermal expansibility becomes weaker. Thermal conductivity of the composite PCM has been enhanced significantly.

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