scholarly journals Poly( n ‐alkyl methacrylate)s as Metallocene Catalyst Supports in Nonpolar Media

2019 ◽  
Vol 220 (19) ◽  
pp. 1970037
Author(s):  
Alba Nidia Estrada‐Ramirez ◽  
Carolina Ventura‐Hunter ◽  
Jürgen Vitz ◽  
Enrique Díaz‐Barriga Castro ◽  
René D. Peralta‐Rodriguez ◽  
...  
Keyword(s):  
Metallocene Catalyst ◽  
Catalyst Supports ◽  
Alkyl Methacrylate

Poly( n ‐alkyl methacrylate)s as Metallocene Catalyst Supports in Nonpolar Media

2019 ◽  
Vol 220 (19) ◽  
pp. 1900259 ◽  
Author(s):  
Alba Nidia Estrada‐Ramirez ◽  
Carolina Ventura‐Hunter ◽  
Jürgen Vitz ◽  
Enrique Díaz‐Barriga Castro ◽  
René D. Peralta‐Rodriguez ◽  
...  
Keyword(s):  
Metallocene Catalyst ◽  
Catalyst Supports ◽  
Alkyl Methacrylate

Synthesis and characterization of functional porous organic polymers as efficient metallocene catalyst supports

2016 ◽  
Vol 40 (10) ◽  
pp. 8324-8333 ◽  
Author(s):  
Xiong Wang ◽  
Renwei Xu ◽  
Bochao Zhu ◽  
Yanfeng Li ◽  
Yanping Ma
Keyword(s):  
Pore Structure ◽  
Dispersion Polymerization ◽  
Metallocene Catalyst ◽  
Synthesis And Characterization ◽  
Catalyst Supports ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Structure And Morphology

Porous P(HEMA-co-DVB) particles with tunable pore structure and morphology were prepared by a dispersion polymerization strategy.

scholarly journals Aluminum Containing Dendrimeric Silica Nanoparticles as Promising Metallocene Catalyst Supports for Ethylene Polymerization

ChemCatChem ◽  
2018 ◽  
Vol 10 (17) ◽  
pp. 3761-3769 ◽  
Author(s):  
Duarte M. Cecílio ◽  
Auguste Fernandes ◽  
João Paulo Lourenço ◽  
M. Rosário Ribeiro
Keyword(s):  
Silica Nanoparticles ◽  
Ethylene Polymerization ◽  
Metallocene Catalyst ◽  
Catalyst Supports

scholarly journals Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2091
Author(s):  
Daniela Mileva ◽  
Jingbo Wang ◽  
René Androsch ◽  
Katalee Jariyavidyanont ◽  
Markus Gahleitner ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Metallocene Catalyst ◽  
Nucleating Agent ◽  
Random Copolymers ◽  
Rapid Cooling ◽  
Significant Difference ◽  
Chip Calorimetry ◽  
High Cooling Rates ◽  
Fast Scanning Chip Calorimetry

Propylene-based random copolymers with either ethylene or 1-hexene as comonomer, produced using a metallocene catalyst, were studied regarding their crystallization behaviors, with a focus on rapid cooling. To get an impression of processing effects, fast scanning chip calorimetry (FSC) was used in addition to the characterization of the mechanical performance. When comparing the comonomer type and the relation to commercial grades based on Ziegler–Natta-type catalysts, both an interaction with the catalyst-related regio-defects and a significant difference between ethylene and 1-hexene was observed. A soluble-type nucleating agent was found to modify the behavior, but to an increasingly lesser degree at high cooling rates.

scholarly journals A Brief Overview of Recent Progress in Porous Silica as Catalyst Supports

2021 ◽  
Vol 5 (3) ◽  
pp. 75
Author(s):  
Preeti S. Shinde ◽  
Pradnya S. Suryawanshi ◽  
Kanchan K. Patil ◽  
Vedika M. Belekar ◽  
Sandeep A. Sankpal ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
High Surface ◽  
High Surface Area ◽  
Porous Silica ◽  
Textural Properties ◽  
Silica Particles ◽  
Catalyst Supports ◽  
Silica Supports ◽  
Low Degree ◽  
Transfer Properties

Porous silica particles have shown applications in various technological fields including their use as catalyst supports in heterogeneous catalysis. The mesoporous silica particles have ordered porosity, high surface area, and good chemical stability. These interesting structural or textural properties make porous silica an attractive material for use as catalyst supports in various heterogeneous catalysis reactions. The colloidal nature of the porous silica particles is highly useful in catalytic applications as it guarantees better mass transfer properties and uniform distribution of the various metal or metal oxide nanocatalysts in solution. The catalysts show high activity, low degree of metal leaching, and ease in recycling when supported or immobilized on porous silica-based materials. In this overview, we have pointed out the importance of porous silica as catalyst supports. A variety of chemical reactions catalyzed by different catalysts loaded or embedded in porous silica supports are studied. The latest reports from the literature about the use of porous silica-based materials as catalyst supports are listed and analyzed. The new and continued trends are discussed with examples.

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