Novel polymeric surfactants and their applications in miniemulsions

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Lucretiu Cismaru ◽  
Thierry Hamaide ◽  
Marcel Popa
Keyword(s):  
Maleic Anhydride ◽  
Radical Polymerization ◽  
Vinyl Acetate ◽  
Miniemulsion Polymerization ◽  
Static Mixer ◽  
Polymeric Surfactants ◽  
Molecular Weights ◽  
Methoxypolyethylene Glycol ◽  
Mean Diameter ◽  
Evaporation Technique

AbstractN-Vinyl-2-pyrrolidone (NVP) and maleic anhydride (MA) copolymers were synthesized via radical polymerization. The synthesized copolymers were grafted with methoxypolyethylene glycol (MPEG) chains of different average molecular weights (350, 550, 750 Da). The grafted copolymers were used as surfactants in the synthesis of poly(ε-caprolactone) (PCL) nanoparticles in water by solvent evaporation technique. In order to further test the synthesized surfactants, the miniemulsion polymerization of vinyl acetate was performed. Two methods of obtaining miniemulsion were employed: a sonicator and a static mixer. The synthesized surfactants performed well in both type of experiments while in the case of static mixer nanoparticles with a lower polydispersity were obtained. Droplets with a mean diameter of 250 nm were obtained when using the sonicator while the static mixer led to formation of droplets with a mean diameter of 600 nm.

Effective Cobalt Mediation of the Radical Polymerization of Vinyl Acetate in Suspension

2005 ◽  
Vol 117 (22) ◽  
pp. 3505-3508 ◽  
Author(s):  
Antoine Debuigne ◽  
Jean-Raphaël Caille ◽  
Christophe Detrembleur ◽  
Robert Jérôme
Keyword(s):  
Radical Polymerization ◽  
Vinyl Acetate

Synthesis, characterization, and antitumor activity of poly(maleic anhydride-co-vinyl acetate-co-acrylic acid)

2006 ◽  
Vol 100 (5) ◽  
pp. 3425-3432 ◽  
Author(s):  
Hatice Kaplan Can ◽  
A. Lale Doğan ◽  
Zakir M. O. Rzaev ◽  
Ayşegül Hasegeli Uner ◽  
Ali Güner
Keyword(s):  
Antitumor Activity ◽  
Maleic Anhydride ◽  
Acrylic Acid ◽  
Vinyl Acetate

Highly Efficient Cobalt-Mediated Radical Polymerization of Vinyl Acetate

2005 ◽  
Vol 117 (7) ◽  
pp. 1125-1128 ◽  
Author(s):  
Antoine Debuigne ◽  
Jean-Raphaël Caille ◽  
Robert Jérôme
Keyword(s):  
Radical Polymerization ◽  
Vinyl Acetate ◽  
Highly Efficient

Effect of PEgMAH on Tensile Properties and Swelling Behaviour of Recycled High Density Polyethylene/Ethylene Vinyl Acetate/Waste Tyre Dust (r-HDPE/EVA/WTD) Composites

2014 ◽  
Vol 554 ◽  
pp. 137-140 ◽  
Author(s):  
A.R.H. Fatimah ◽  
Ikmal Hakem Abdul Aziz ◽  
A.Ghani Supri
Keyword(s):  
Maleic Anhydride ◽  
Tensile Properties ◽  
Vinyl Acetate ◽  
High Density Polyethylene ◽  
Ethylene Vinyl Acetate ◽  
High Density ◽  
Rotor Speed ◽  
Swelling Behaviour ◽  
Dust Loading ◽  
Waste Tyre

The effect of polyethylene grafted maleic anhydride as a compatibilizer on the tensile properties, and swelling behavior of recycled high density polyethylene/ethylene vinyl acetate/ waste tyre dust (r-HDPE/EVA/WTD) composites was studied. r-HDPE/EVA/WTD composites with different tyre dust loading and the addition of polyethylene grafted maleic anhydride (PEgMAH) were prepared with Brabender Plasticorder at temperature of 160°C and rotor speed of 50 rpm. The result indicated that r-HDPE/EVA/WTD/PEgMAH composites exhibit higher tensile strength, modulus of elasticity, and mass swell resistance than r-HDPE/EVA/WTD composites.

Characterization and Synthesis of This Comb Type Copolymer with Styrene Using A Macromonomer Containing Polyethylmethacrylate

2019 ◽  
Vol 41 (4) ◽  
pp. 569-569
Author(s):  
Asl ah A kses and S leyman Sara Asl ah A kses and S leyman Sara
Keyword(s):  
Glass Transition ◽  
Radical Polymerization ◽  
Dielectric Behavior ◽  
Methacryloyl Chloride ◽  
Glass Transition Temperatures ◽  
Ethyl Methacrylate ◽  
Molecular Weights ◽  
Nmr Techniques ◽  
Ft Ir ◽  
Polymerization Method

In this study, firstly 7-hydroxy-4-chloromethyl coumarin (CMHC) was synthesized from reaction of ethyl 4-chloroacetoasetate with resorcinol. Then, the poly(ethyl methacrylate) coumarin end grouped having hydroxyl (CEMA) was prepared by ethyl methacrylate with using (CMHC) as initiator by atom transfer radical polymerization (ATRP) method. A macromonomer (CMEMA) was synthesized from reaction of methacryloyl chloride and poly(EMA) ended coumarin having OH group (CEMA). Molecular brush of P(CMEMA-comb-%16St) was synthesized by reaction of macromonomer CMEMA and styrene by free radical polymerization method (SRP). The structures of the prepared macromonomer and molecular brush were characterized by FT-IR and 1H-NMR techniques. The thermal behavior of P(CMEMA-comb-%St) has been investigated by TGA, and the glass transition temperatures have been measured on DSC. The average molecular weights and polydispersity were determined by GPC. The dielectric behavior of P(CMEMA-comb-%16St) was investigated as a function of temperature and frequency. The intrinsic viscosity [] of P(CMEMA-comb-%16St) was determinated.

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