Polyethylene-montmorillonite nanocomposites obtained by in situ polymerization of ethylene with nickel-diimine catalysts

2011 ◽  
Vol 122 (3) ◽  
pp. 2159-2165 ◽  
Author(s):  
Marcelo Luis Mignoni ◽  
Jonathan Vaz Martins Silva ◽  
Michèle Oberson de Souza ◽  
Raquel dos Santos Mauler ◽  
Roberto Fernando de Souza ◽  
...  
Keyword(s):  
In Situ Polymerization ◽  
Montmorillonite Nanocomposites

Crystallization Behavior of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization

2012 ◽  
Vol 184-185 ◽  
pp. 932-935
Author(s):  
Min Li ◽  
Li Guang Xiao ◽  
Hong Kai Zhao
Keyword(s):  
Differential Scanning Calorimetry ◽  
Crystallization Behavior ◽  
Crystallization Process ◽  
In Situ Polymerization ◽  
Nucleating Agent ◽  
Lower Content ◽  
Melting Points ◽  
Scanning Calorimetry ◽  
Montmorillonite Nanocomposites

Polyethylene/montmorillonite (PE/MMT) nanocomposites were prepared by in situ polymerization. The crystallization behavior of PE/MMT nanocomposites at different MMT concentrations (from 0.1 to 1.2 wt %) were investigated by differential scanning calorimetry (DSC). The equilibrium melting points increase by the addition of MMT. The crystallization rates of PE/MMT nanocomposites are faster than those of pure PE. The addition of MMT facilitated the crystallization of PE, with the MMT functioning as a heterogeneous nucleating agent at lower content; at higher concentrations, however, the physical hindrance of the MMT layers to the motion of PE chains retarded the crystallization process.

scholarly journals Synthesis of Polyamide-6/Montmorillonite Nanocomposites by Direct In-situ Polymerization Catalysed by Exchanged Clay

2013 ◽  
Vol 29 (4) ◽  
pp. 1429-1436 ◽  
Author(s):  
Djamal Kherroub ◽  
Mohammed Belbachir ◽  
Saad Lamouri ◽  
Larbi Bouhadjar ◽  
Karim Karim Chikh
Keyword(s):  
In Situ Polymerization ◽  
Polyamide 6 ◽  
Montmorillonite Nanocomposites
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