شماره ركورد كنفرانس :
5048
عنوان مقاله :
Effect of emulsifier and initiator concentration in semi-batch emulsion copolymerization of butyl acrylate and glycidyl methacrylate
Author/Authors :
H ،Bakhshi Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran , M. J ،Zohuriaan-Mehr Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran , H ،Bouhendi Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran , K ،Kabiri Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
كليدواژه :
emulsion copolymerization , glycidyl methacrylate , butyl acrylate , monomer conversion , particle size distribution
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
Semi-batch emulsion copolymerization was carried out to prepare poly(butyl acrylate-co-glycidyl methacrylate) latexes
at 75 ºC, using potassium persulfate as an initiator, sodium dodecylbenzene sulfonate as an emulsifier and sodium
bicarbonate as a buffer. The reaction was conducted in three stages; a further stage (called the steady stage, 2 hours) was
added to the tradition stages (i.e., feed and seed stages) to improve considerably the monomer conversion. The
monomer conversion and particle size distribution were studied by gravimetric and laser light scattering methods,
respectively. The effects of variables (i.e., emulsifier and initiator concentration), were fully investigated based on the
monomer conversion-time profiles and the particle size. Increasing the initiator or emulsifier contents improved
monomer conversion while reduced the particle size.
