The Preparation of Methyl Methacrylate/Methacrylic Anhydride Copolymers from PMMA and Dialkyl Amines via Reactive Extrusion

1997 ◽  
pp. 3-9 ◽  
Author(s):  
Michael P. Hallden-Abberton
Keyword(s):  
Methyl Methacrylate ◽  
Reactive Extrusion

Preparation of methyl methacrylate-maleic anhydride copolymers via reactive extrusion by regulating the trommsdorff effect

2018 ◽  
Vol 6 (2) ◽  
pp. 025315 ◽  
Author(s):  
Pengfei Zhan ◽  
Jianding Chen ◽  
Anna Zheng ◽  
Tianhua Huang ◽  
Han Shi ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Methyl Methacrylate ◽  
Reactive Extrusion ◽  
Maleic Anhydride Copolymers

The Trommsdorff effect under shear and bulk polymerization of methyl methacrylate via reactive extrusion

2020 ◽  
Vol 122 ◽  
pp. 109272 ◽  
Author(s):  
Pengfei Zhan ◽  
Jianding Chen ◽  
Anna Zheng ◽  
Han Shi ◽  
Fuxiu Chen ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Reactive Extrusion ◽  
Bulk Polymerization

Study on Influences of Superplasticizer with Waste Plexiglas (WPS) on Cement Paste and Mortar

2011 ◽  
Vol 328-330 ◽  
pp. 579-582
Author(s):  
Gang Zheng ◽  
Ru Min Wang ◽  
Gao Yang Zhao ◽  
Xiao Jiao Yu
Keyword(s):  
Methyl Methacrylate ◽  
Cement Paste ◽  
Reactive Extrusion ◽  
Ethyl Acrylate ◽  
Screw Extruder ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Single Screw ◽  
Single Screw Extruder ◽  
Ft Ir

In this paper, superplasticizer was synthesized from waste plexiglas and sodium allysulfonate (WPS). Poly(methyl methacrylate-co-ethyl acrylate) grafling sodium allysulfonate (PMMA-g-AS) was prepared through reactive extrusion in self-single screw extruder and hydrolysis reaction. The structures of the WPS were characterized by FT-IR spectrometer. The results show that structures of the WPS are clear. Properties of WPS and traditional naphthalene sulfonated formaldehyde condensates (FDN) were investigated, when water-cement ratio (W/C = 0.29) and the dosage of superplasticizer is 0.6 wt.% of cement, water reducing rate of mortar is 22.1%, which is 7.3% higher than that of FDN. BWP of the mortar of WPS is 1.4%. In addition, the compressive strengths of mortar of 3 d, 7 d and 28 d are higher than that of FDN, respectively, indicating that over-all performance of WPS reaches the standard of superplasticizer and its ratio of performance to cost is higher than FDN.

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