Polymerization of 1,3-butadiene with neodymium chloride tripentanolate/triisobutylaluminum binary catalyst system: effect of aging time and reaction temperature
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Francisco Javier Enríquez-Medrano
Abstract
1,3-Butadiene monomer was polymerized at 40°C and 60°C by means of a catalyst comprising neodymium (Nd) chloride/1-pentanolate/triisobutylaluminum (TIBA) in cyclohexane as solvent; the catalyst system was aged at 5 and 30 min. The effects on conversion, catalytic activity and polymer final properties were evaluated. The obtained polybutadienes (PBs) were characterized by size exclusion chromatography (SEC), nuclear magnetic resonance (NMR) and differential scanning calorimetry (DSC) techniques and the results were discussed in terms of the effect of aging time and reaction temperature.
Acknowledgments
Our thanks go to Ricardo Mendoza Carrizalez, José Alejandro Díaz Elizondo, Jesús Cepeda Garza, Pablo Acuña Vazquez and Judith Cabello-Romero for their technical support in the preparation and characterization of different samples, and Juan Uriel Peña Castillo for his help with the literature research.
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©2015 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Original articles
- Yield analysis of copolymers: effect of temperature, feed ratio and initiator concentration on the copolymerization
- Polymerization of 1,3-butadiene with neodymium chloride tripentanolate/triisobutylaluminum binary catalyst system: effect of aging time and reaction temperature
- Preparation and surface modification of Mg(OH)2/siloxane nanocomposite flame retardant
- Effect of chemical modification on slip resistance and mechanical properties of rubber
- Effect of curing temperature and layering pattern on performance studies: a novel hybrid composite
- Characterization of ultrasound-treated oil palm empty fruit bunch-glass fiber-recycled polypropylene hybrid composites
- Ultraviolet or atomic irradiation effect on the polyimide composite lubricating coating
- Nano and microstructures of SEBS/PP/wax blend membranes: SAXS and WAXS analyses
- Effects of added phthalate plasticizers on photodegradation of irradiated poly (α-methylstyrene) films
- Amino acids and poly(amino acids) as nucleating agents for poly(lactic acid)
- Nanostructural characterization of poly (vinylidene fluoride)-clay nanocomposites prepared by a one-step reactive extrusion process
- The extrusion of plasticized poly(vinyl chloride) in an extruder with a modified feed zone. Part 1: extrusion process
Artikel in diesem Heft
- Frontmatter
- Original articles
- Yield analysis of copolymers: effect of temperature, feed ratio and initiator concentration on the copolymerization
- Polymerization of 1,3-butadiene with neodymium chloride tripentanolate/triisobutylaluminum binary catalyst system: effect of aging time and reaction temperature
- Preparation and surface modification of Mg(OH)2/siloxane nanocomposite flame retardant
- Effect of chemical modification on slip resistance and mechanical properties of rubber
- Effect of curing temperature and layering pattern on performance studies: a novel hybrid composite
- Characterization of ultrasound-treated oil palm empty fruit bunch-glass fiber-recycled polypropylene hybrid composites
- Ultraviolet or atomic irradiation effect on the polyimide composite lubricating coating
- Nano and microstructures of SEBS/PP/wax blend membranes: SAXS and WAXS analyses
- Effects of added phthalate plasticizers on photodegradation of irradiated poly (α-methylstyrene) films
- Amino acids and poly(amino acids) as nucleating agents for poly(lactic acid)
- Nanostructural characterization of poly (vinylidene fluoride)-clay nanocomposites prepared by a one-step reactive extrusion process
- The extrusion of plasticized poly(vinyl chloride) in an extruder with a modified feed zone. Part 1: extrusion process
