Details

Autor(en) / Beteiligte

• Mendez-Hernandez, Maria Leonor
• Rivera-Armenta, Jose Luis
• Paramo-Garcia, Ulises
• Galvan, Sergio Corona
• Garcia-Alamilla, Ricardo
• Salazar-Cruz, Beatriz Adriana
• Sudo, Atsushi

Titel

Synthesis of High cis-1,4-BR with Neodymium for the Manufacture of Tires

Ist Teil von

• International Journal of Polymer Science, 2016-01, Vol.2016 (2016), p.1016-1022

Ort / Verlag

Cairo, Egypt: Hindawi Limiteds

Erscheinungsjahr

2016

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The salt of neodymium has been widely used in industrial polymerization of 1,3-butadiene. We used the ternary catalytic system neodymium versatate/diethylaluminum chloride/triisobutylaluminum (NdV3/DEAC/TIBA) with 0.5 mM NdV3/100 g Bd, NdV3 : DEAC = 1 : 9 mol : mol, and TIBA = 25, 50, 100, and 200 mM. The number-average molecular weight (Mn), weight-average molecular weight (Mw), and polydispersity index (PDI) were analyzed by GPC; the rheological properties were analyzed by DMA. The formulations were prepared with carbon black (IRB6) as reinforcing filler and the mechanical properties were compared to behavior of the different elastomeric compounds. The elastomeric compounds were characterized by their rheological properties, tensile strength, abrasion resistance, tear strength, permanent set, resilience, and fatigue properties. The high cis-1,4 polybutadiene (high cis-1,4-BR) was obtained with a percentage of cis-1,4 ≥97%. The weight-average molecular weight (Mw) was from 150 × 103 to 900 × 103 g/mol and polydispersity index (PDI) was from 3.1 to 5.1. This work is based on evaluation of the effect of the catalyst system on the final properties of the synthesized polybutadiene.