Controlled synthesis of poly(vinyl acetate) by traditional radical emulsion polymerization

2016 ◽  
Vol 65 (12) ◽  
pp. 1382-1386 ◽  
Author(s):  
Yu Guan ◽  
Jingjing Li ◽  
Leishan Shao ◽  
Fei Wang ◽  
Dongyu Dong ◽  
...  
Keyword(s):  
Emulsion Polymerization ◽  
Vinyl Acetate ◽  
Controlled Synthesis

Conversion Enhancement of Vinyl Acetate Monomer to Polyvinyl Acetate Emulsion through Emulsion Polymerization Method

2021 ◽  
Vol 1028 ◽  
pp. 263-268
Author(s):  
Rafly Aprilian ◽  
Mas Ayu Elita Hafizah ◽  
Azwar Manaf ◽  
Andreas
Keyword(s):  
Emulsion Polymerization ◽  
Vinyl Acetate ◽  
Polyvinyl Acetate ◽  
Batch Process ◽  
Ammonium Persulfate ◽  
Solid Content ◽  
Amphoteric Surfactant ◽  
Polymerization Reaction ◽  
Vinyl Acetate Monomer ◽  
Polymerization Method

Synthesis of Polyvinyl Acetate (PVAc) through the conversion of Vinyl Acetate Monomer (VAM) was carried out by emulsion polymerization method assisted by thermal initiator Ammonium persulfate (APS) under reaction temperature was kept at 70 °C – 80 °C with 5 hours of reaction time and agitation speed at 300 rpm. The polymerization reaction was running used batch process technique where is all components were mixed all together simultaneously. A set of polymerization reactions was conducted when the absence of surfactant and cationic and amphoteric surfactant presence. The monomer chain's double bond was found at 1645 cm-1 was measured by FTIR Spectrophotometer did not disappear after polymerization reaction was utterly done. The spectrum FTIR of Polyvinyl acetate did not explicitly found at 1644 cm-1. During the reaction, characterization was conducted by measuring the solid content value where the maximum solid content was achieved was 6,1 % when using Amphoteric surfactant while the lowest solid content was obtained when the absence of surfactant. Other parameters were conducted to observe the acidity value by pH Meter.

Variable morphologies of poly(vinyl acetate)–montmorillonite nanocomposites obtained by emulsion polymerization in the presence of poly(vinyl pyrrolidone)

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Mihai-Cosmin Corobea ◽  
Violeta Uricanu ◽  
Dan Donescu ◽  
Szabolcs Deladi ◽  
Constantin Radovici ◽  
...  
Keyword(s):  
Emulsion Polymerization ◽  
Vinyl Acetate ◽  
Polymer Matrix ◽  
The Other ◽  
Vinyl Pyrrolidone ◽  
Clay Concentration ◽  
End Products ◽  
Poly Vinyl Pyrrolidone ◽  
Montmorillonite Nanocomposites

AbstractNanocomposites containing poly(vinyl acetate) and montmorillonite (MMT) were prepared using a one-batch emulsion polymerization recipe, assisted by poly (vinylpyrrolidone). The relative clay concentration with respect to the other reaction partners influences drastically the morphological units in the end-products. For low [MMT], well-defined, spherical PVAc particles are formed. At the other extreme, for high [MMT], production of polymeric, water-swollen aggregates is favored. Depending on the MMT/PVP ratio, the clay will be dispersed in the final polymer matrix in variable forms, from individual platelets to agglomerates of reformed tactoids.

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