The fundamental mechanism of ultrasonically initiated encapsulating emulsion polymerization to prepare polymer / inorganic nanoparticles composites were proposed 通過(guò)tem , uv vis , ftir , xrd ,以及電導(dǎo)率的測(cè)定表征了導(dǎo)電聚苯胺的結(jié)構(gòu)和性能。
A free radical polymerization mechanism for ultrasonically irradiated emulsion polymerization was proposed . ( 2 ) ultrasonically irradiated encapsulating emulsion polymerization was first used to prepare polymer / inorganic nanoparticles composites 二、采用超聲輻照包裹乳液聚合法制備了長(zhǎng)期穩(wěn)定的、聚合物包裹無(wú)機(jī)納米粒子的膠乳體系,處理后得到聚合物/無(wú)機(jī)納米粒子復(fù)合材料。
The results suggested that the ph value , the type of monomers , the type , concentration and surface properties of inorganic nanoparticles , the type and concentration of emulsifier have a great influence on the encapsulating emulsion polymerization and the obtained latex stability . if selecting cationic emulsifier ( ctab ) , low water soluble monomers ( such as ba , st ) and hydrophobic nano - silica , the inorganic nanoparticles would be encapsulated by polymers through ultrasonic irradiation successfully under alkalescent condition 系統(tǒng)研究了ba 、甲基丙烯酸甲酯( mmal苯乙烯舊t )以及它們的共聚體系在超聲輻照作用下包裹聚合的主要影響因素,結(jié)果表明: ph值、單體的種類、無(wú)機(jī)納米粒子的種類、濃度及表面性能、乳化劑的種類及濃度等對(duì)超聲輻照包裹乳液聚合以及復(fù)合體系的穩(wěn)定性有較大的影響。