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Polymer Bulletin
Erschienen in: Polymer Bulletin 2/2016

27.08.2015 | Original Paper

Synthesis and characterization of random styrene–butadiene copolymer with Nd-based catalyst

verfasst von: Tingting Li, Yang Li, Gongqiang He, Zhenghai Shi, Yanming Hu, Fang Guo, Yurong Wang, Kaihua Shen, Zhiyong Wei, Hongwei Ma, Yuan Cheng, Yanshai Wang

Erschienen in: Polymer Bulletin | Ausgabe 2/2016

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Abstract

Random styrene (St)–butadiene (Bd) copolymer (SBR) was obtained with the catalyst system composed of Nd(P507)3, methylaluminoxane (MAO) and indene. This Nd-based catalyst system showed high activity and selectivity toward the copolymerization. Indene was proven to be the critical component to achieve the high content of St units (~33.0 %). Raising the polymerization temperature was beneficial to enhance the coordination of St to the active center, affording the increased yield and number-average molecular weight (M n ) of SBR. The polymers obtained in aliphatic solvents possessed higher M n than M n of SBR generated in toluene. The composition of SBR was controllable by adjusting the feed ratio of St/Bd. NMR and DSC analysis illustrated that the copolymers sustained random distribution even when St incorporation in SBR was up to 33.0 %. SBR was fully characterized by NMR, FTIR, GPC and DSC analysis.
Vorheriger Artikel The carbazole-bound ferrocenium salt as a specific cationic photoinitiator upon near-UV and visible LEDs (365–405 nm)
Nächster Artikel Alginate graft polyacrylonitrile beads for the removal of lead from aqueous solutions

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Metadaten
Titel
Synthesis and characterization of random styrene–butadiene copolymer with Nd-based catalyst
verfasst von
Tingting Li
Yang Li
Gongqiang He
Zhenghai Shi
Yanming Hu
Fang Guo
Yurong Wang
Kaihua Shen
Zhiyong Wei
Hongwei Ma
Yuan Cheng
Yanshai Wang
Publikationsdatum
27.08.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 2/2016
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-015-1503-4

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