Inorganica Chimica Acta, ( ISI ), Volume (464), Year (2017-5) , Pages (99-107)

Title : ( Synthesis of polyethylene and PE/MWCNT composite using a spherical bulky a-diimine Pd(II) catalyst )

Authors: Mahsa Kimiaghalam , Hossein Nasr Isfahani , Gholamhossein Zohuri , Ali Keivanloo ,

Citation: BibTeX | EndNote

The ligand N,N-bis(2,6-dibenzhydryl-4-ethoxy phenyl)butane-2,3-diimine via a multi-step reaction and the correspond palladium(II) a-diimine catalyst were synthesized, characterized and used in polymerization of ethylene. The effects of polymerization condition were investigated which the a-diimine catalyst was active up to 80 ºC. The highest activity of the catalyst (330 kg of PE (mol Pd -1 h-1) was obtained at 2 equivalent NaBAF (cocatalyst), Tp=40 ºC and P= 5 bar. GPC analysis revealed that the Mw of polyethylene virtually was equal to 8.1x 104 g/mol along with PDI = 1.83. The structure of complex was optimized and the theoretical parameters were presented. The synthesized PE/MWCNT nanocomposite via in-situ polymerization showed the higher thermal stability (27 ºC in presence of 3.88% MWCNT) than neat PE. Investigation of samples morphology by SEM, showed the morphology of the catalyst and PE were virtually spherical according to replication phenomenon and the MWCNTs acted as a bridge and end-cap in the polymer matrix.

Keywords

, Catalytic polymerization, Polyethylene, a-diimine palladium catalyst, Benzhydryl,
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@article{paperid:1062888,
author = {Mahsa Kimiaghalam and Hossein Nasr Isfahani and Zohuri, Gholamhossein and Ali Keivanloo},
title = {Synthesis of polyethylene and PE/MWCNT composite using a spherical bulky a-diimine Pd(II) catalyst},
journal = {Inorganica Chimica Acta},
year = {2017},
volume = {464},
month = {May},
issn = {0020-1693},
pages = {99--107},
numpages = {8},
keywords = {Catalytic polymerization; Polyethylene; a-diimine palladium catalyst; Benzhydryl; Nanocomposite},
}

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%0 Journal Article
%T Synthesis of polyethylene and PE/MWCNT composite using a spherical bulky a-diimine Pd(II) catalyst
%A Mahsa Kimiaghalam
%A Hossein Nasr Isfahani
%A Zohuri, Gholamhossein
%A Ali Keivanloo
%J Inorganica Chimica Acta
%@ 0020-1693
%D 2017

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