Microstructure manipulation in PVDF/styrene-maleic anhydride copolymer composite membranes: Effects of miscibility on the phase separation

2021 ◽  
Vol 263 ◽  
pp. 118371
Author(s):  
Dongdong Kang ◽  
Huiju Shao ◽  
Guijing Chen ◽  
Xiaoliang Dong ◽  
Shuhao Qin
Keyword(s):  
Phase Separation ◽  
Maleic Anhydride ◽  
Composite Membranes ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer

Styrene-maleic anhydride copolymer esters as flow improvers of waxy crude oil

2009 ◽  
Vol 65 (3-4) ◽  
pp. 139-146 ◽  
Author(s):  
A.M. Al-Sabagh ◽  
M.R. Noor El-Din ◽  
R.E. Morsi ◽  
M.Z. Elsabee
Keyword(s):  
Maleic Anhydride ◽  
Crude Oil ◽  
Waxy Crude Oil ◽  
Waxy Crude ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer

Styrene-Maleic Anhydride Copolymer Esters as Flow Improvers of Waxy Crude Oil

2009 ◽  
Vol 30 (3) ◽  
pp. 420-426 ◽  
Author(s):  
A. M. Al-Sabagh ◽  
M. R. Noor El-Din ◽  
R. E. Morsi ◽  
M. Z. Elsabee
Keyword(s):  
Maleic Anhydride ◽  
Crude Oil ◽  
Waxy Crude Oil ◽  
Waxy Crude ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer

scholarly journals Properties of Styrene–Maleic Anhydride Copolymer Compatibilized Polyamide 66/Poly (Phenylene Ether) Blends: Effect of Maleic Anhydride Concentration and Copolymer Content

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1237 ◽  
Author(s):  
Alper Aksit ◽  
Teresa Menzel ◽  
Merve Aksit ◽  
Volker Altstädt
Keyword(s):  
Electron Microscopy ◽  
Maleic Anhydride ◽  
Thermomechanical Properties ◽  
Cohesive Failure ◽  
Polyamide 66 ◽  
Interfacial Activity ◽  
Transmission Electron ◽  
Twin Screw ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer

Polyamide 66 (PA66)/poly (2,6-dimethyl-1,4-phenylene ether) (PPE) blends with a ratio of 50/50 (w/w) were produced by a twin-screw compounder. The immiscible blends were compatibilized using two different styrene–maleic anhydride copolymers (SMA) with a low (SMAlow) and a high (SMAhigh) maleic anhydride (MA) concentration of 8 and 25 wt%, respectively. Furthermore, the SMA content was varied from 0 to 10 wt%. The influence of MA concentration and SMA content on the morphological and thermomechanical properties of PA66/PPE blends was investigated. Herein, we established correlations between the interfacial activity of the SMA with blend morphology and corresponding tensile properties. A droplet-sea to co-continuous morphology transition was shown by scanning electron microscopy to occur between 1.25 and 5 wt% in the case of SMAhigh. For SMAlow, the transition started from 7.5 wt% and was still ongoing at 10 wt%. It was found that SMAlow with 10 wt% content enhanced the tensile strength (10%) and elongation at break (70%) of PA66/PPE blends. This improvement can be explained by the strong interfacial interaction of SMAlow within the blend system, which features the formation of nanoemulsion morphology, as shown by transmission electron microscopy. Very small interdomain distances hinder matrix deformations, which forces debonding and cohesive failure of the PPE phase as a “weaker” main deformation mechanism. Due to a lack of interfacial activity, the mechanical properties of the blends with SMAhigh were not improved.

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