Rheological properties of poly(acrylonitrile-co-methyl acrylate)/clay nanocomposites prepared via emulsion polymerization

2010 ◽  
Vol 32 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Eddson Zengeni ◽  
Patrice C. Hartmann ◽  
Ronald D. Sanderson
Keyword(s):  
Rheological Properties ◽  
Emulsion Polymerization ◽  
Methyl Acrylate ◽  
Clay Nanocomposites ◽  
Poly Acrylonitrile

scholarly journals Fabrication and Characterization of Electrospun Poly(acrylonitrile-co-Methyl Acrylate)/Lignin Nanofibers: Effects of Lignin Type and Total Polymer Concentration

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 992
Author(s):  
Suchitha Devadas ◽  
Saja M. Nabat Al-Ajrash ◽  
Donald A. Klosterman ◽  
Kenya M. Crosson ◽  
Garry S. Crosson ◽  
...  
Keyword(s):  
Methyl Acrylate ◽  
Lignin Content ◽  
Polymer Concentration ◽  
Weight Ratio ◽  
Electrospun Nanofibers ◽  
Polymer Content ◽  
Blend Ratio ◽  
Blend Ratios ◽  
Poly Acrylonitrile

Lignin macromolecules are potential precursor materials for producing electrospun nanofibers for composite applications. However, little is known about the effect of lignin type and blend ratios with synthetic polymers. This study analyzed blends of poly(acrylonitrile-co-methyl acrylate) (PAN-MA) with two types of commercially available lignin, low sulfonate (LSL) and alkali, kraft lignin (AL), in DMF solvent. The electrospinning and polymer blend solution conditions were optimized to produce thermally stable, smooth lignin-based nanofibers with total polymer content of up to 20 wt % in solution and a 50/50 blend weight ratio. Microscopy studies revealed that AL blends possess good solubility, miscibility, and dispersibility compared to LSL blends. Despite the lignin content or type, rheological studies demonstrated that PAN-MA concentration in solution dictated the blend’s viscosity. Smooth electrospun nanofibers were fabricated using AL depending upon the total polymer content and blend ratio. AL’s addition to PAN-MA did not affect the glass transition or degradation temperatures of the nanofibers compared to neat PAN-MA. We confirmed the presence of each lignin type within PAN-MA nanofibers through infrared spectroscopy. PAN-MA/AL nanofibers possessed similar morphological and thermal properties as PAN-MA; thus, these lignin-based nanofibers can replace PAN in future applications, including production of carbon fibers and supercapacitors.

Effect of interfacial interaction on the structure and rheological properties of polyamide-6/clay nanocomposites

2006 ◽  
Vol 13 (8-9) ◽  
pp. 773-782 ◽  
Author(s):  
J. S. Choi ◽  
S. T. Lim ◽  
H. J. Choi ◽  
A. Pozsgay ◽  
L. Százdi
Keyword(s):  
Rheological Properties ◽  
Polyamide 6 ◽  
Interfacial Interaction ◽  
Clay Nanocomposites
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