Studies on the structure of the copolymer particles

• Main Authors: Lian Kuo-Wei, 連國威
• Other Authors: Hsu Ke-Ying
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/52272512074582534043

碩士 === 中原大學 === 化學工程研究所 === 86 === Micro-sized monodisperse porous copolymer particles,of (glycidy methacrylate-co-Trimethylol propane Trimethacrylate) were prepared by using two step swellingand then polymerization.By changing the recipes and reaction conditions, such as:ratio and amount of the monomer and crosslinking agent, kind and amount of diluents,reaction time etc, the effect on the properties of the particles of the particles such as:specific surface area,particle size,pore diameter distribution, internal porevolume etc.,were studied. The major effect on the polymer particles structure and mophology was investigated by using those above obtained data. From the experimental results, when n-Octanol was used as diluent, the surface of the particles is rougeness and porous,and the specific surface aera reaches up to 400m2/g; By changingthe ratio of the crosslinking agent and the amount of the diluentadded, the mean pore diameter can be controed. However whentoluene is used as diluent, the surface of the particle is smooth and skinned, and the specific surface area is very small.During the polymerization, samples were taken at different reaction times.These particles were examined their surface and interior structure. Try to find out of the formation of the particles structure and pridict the final mophology of these porous particles.