Preparation of Calcium Carbonate@Methyl Methacrylate Nanoparticles by Seeded-Dispersion Polymerization for High Performance Polyvinyl Chloride Nanocomposites

2015 ◽  
Vol 54 (30) ◽  
pp. 7459-7464 ◽  
Author(s):  
Wenqiong Ye ◽  
Ling Zhang ◽  
Guowei Feng ◽  
Jing Ye ◽  
Chunzhong Li
Keyword(s):  
Calcium Carbonate ◽  
Methyl Methacrylate ◽  
Polyvinyl Chloride ◽  
High Performance ◽  
Dispersion Polymerization ◽  
Seeded Dispersion Polymerization

Mechanism of seeded dispersion polymerization of methyl methacrylate using submicron polystyrene seed particles

2011 ◽  
Vol 122 (1) ◽  
pp. 203-209 ◽  
Author(s):  
Zhipeng Song ◽  
Eric S. Daniels ◽  
E. David Sudol ◽  
Mohamed S. El-Aasser ◽  
Andrew Klein
Keyword(s):  
Methyl Methacrylate ◽  
Dispersion Polymerization ◽  
Seed Particles ◽  
Seeded Dispersion Polymerization

Effects of chemical modification on the performance evaluation of photoinitiated, dispersion-polymerized poly(methyl methacrylate-co-ethylene glycol dimethacrylate-co-vinylbenzyl chloride) microsphere

2020 ◽  
pp. 096739112091786
Author(s):  
Norhayati Abdullah ◽  
Rabiatul A. Mahmod ◽  
Rohayu Jusoh ◽  
Mohammad Dalour Hossent Beg ◽  
Muhammad Remanul Islam
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
High Performance ◽  
Dispersion Polymerization ◽  
Solid Phase ◽  
Exchange Capacity ◽  
Ethylene Glycol Dimethacrylate ◽  
Glycol Dimethacrylate ◽  
Poly Methyl Methacrylate ◽  
Polymer Resin

Poly(methyl methacrylate- co-ethylene glycol dimethacrylate- co-vinylbenzyl chloride) microsphere was prepared by dispersion polymerization, initiated by light using water/ethanol mixture. The sulfonated hypercrosslinked (HXL) polymer resin was synthesized via three stages, namely, precursor synthesis (photoinitiated dispersion polymerization), post-polymerization after hypercrosslinking reaction, and post-polymerization before hypercrosslinking reaction. The optimized precursor was functionalized before the hypercrosslinking reaction to investigate its ion-exchange capacity, specific surface area (SSA), morphology, and thermal stability. Post-polymerization after hypercrosslinking reaction showed that the chlorine content and SSA are higher than post-polymerization before hypercrosslinking reaction. HXL reaction took place using Friedel–Crafts alkylation with the aid of FeCl3 catalyst. Lewis acid (FeCl3) also played a significant role which contributed to high SSA of the HXL polymer. The particles produced from photoinitiated dispersion polymerization have advantages and could be used in solid-phase extraction, drug delivery, and high-performance liquid chromatography.

scholarly journals Formation of ANFO Analogues under Fire Conditions in the Presence of Common Plastics

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 476
Author(s):  
Paweł Wolny ◽  
Norbert Tuśnio ◽  
Artur Lewandowski ◽  
Filip Mikołajczyk ◽  
Sławomir Kuberski
Keyword(s):  
Methyl Methacrylate ◽  
Ammonium Nitrate ◽  
Polyvinyl Chloride ◽  
High Performance ◽  
Electrical Insulation ◽  
Wear Resistant ◽  
Machine Elements ◽  
Farm Buildings ◽  
Fire Conditions

This article is a continuation of a case study in which we presented the results of research on processes generated under fire conditions by mixing molten ammonium nitrate (AN) with selected polymers. Here, we present an analysis of how certain materials, which may frequently appear in farm buildings and are commonly used in the immediate vicinity of humans, can potentially form explosives. The chosen materials include polyamides (PA) from which the wear-resistant machine elements are made (e.g., high-performance gears, wheels of transport trolleys); polyvinyl chloride (PVC) used, i.e., in construction carpentry, electrical insulation, and hydraulic pipes; polystyrene (PS) used, i.e., in insulation and containers; and poly(methyl methacrylate) (PMMA), i.e., so-called organic glass and plexiglass. The research results showed that these seemingly harmless and safe materials, mixed with AN and heated under fire conditions, may turn into explosives and stimulate stored AN. This creates significant risks of an uncontrolled fire progress.

Preparation of raspberry-like poly(methyl methacrylate) particles by seeded dispersion polymerization

2010 ◽  
Vol 120 (1) ◽  
pp. 501-508 ◽  
Author(s):  
Shan Shi ◽  
Limin Zhou ◽  
Tao Wang ◽  
Lina Bian ◽  
Yantao Tang ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Dispersion Polymerization ◽  
Poly Methyl Methacrylate ◽  
Seeded Dispersion Polymerization
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