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1. 发明授权

US5369133A Method for preparing an improved porous polymer bead 失效
标题翻译：制备改进的多孔聚合物珠粒的方法
公开(公告)号：US5369133A
公开(公告)日：1994-11-29
申请号：US998447
申请日：1992-12-29
申请人： Son-Ki Ihm , Young-Do Jo
发明人： Son-Ki Ihm , Young-Do Jo
IPC分类号： C08J9/20 , C08J9/28
CPC分类号： C08J9/20 , C08J2325/00
摘要： A method for preparing an improved porous polymer bead which comprises the following steps: introducing a mixture comprising a purified monomer, initiator and pore-forming agent into a 4-necked reactor with a suspension stabilizer and aqueous solution, suspending the mixture to provide homogeneous organic droplets at a temperature sufficiently low so as not to decompose the initiator, increasing the temperature gradually to a final reaction temperature and maintaining the temperature at the final temperature to react completely by suspension-polymerization the monomers in the individual organic droplet to provide the porous polymer bead, separating the bead, washing the bead with water, acetone and tetrahydrofuran, successively, and drying the bead, precipitating the bead in a solution mixed with monomer nd thinner to fill the pores of the porous bead with the diluted monomers, and introducing in a 4-necked reactor with a suspension stabilizer and aqueous solution, and by suspension-polymerization again, to coat the lightly cross-linked gel-type polymer on the surface of pores in the porous polymer bead, and again washing and drying the beads to provide an improved porous polymer bead.
摘要翻译：一种制备改进的多孔聚合物珠粒的方法，其包括以下步骤：将包含纯化单体，引发剂和成孔剂的混合物引入具有悬浮稳定剂和水溶液的四颈反应器中，将混合物悬浮以提供均匀的有机物液滴在足够低的温度下不会分解引发剂，将温度逐渐升至最终反应温度，并通过将单体悬浮聚合以保持最终温度在完全反应以提供多孔聚合物珠，分离珠，依次用水，丙酮和四氢呋喃洗涤珠粒，并干燥珠粒，将珠子沉淀在与单体和稀释剂混合的溶液中，以稀释的单体填充多孔珠粒的孔隙，并引入具有悬浮稳定剂和水溶液的四颈反应器和悬浮液再次裂解，在多孔聚合物珠粒的孔表面上涂覆轻度交联的凝胶型聚合物，再次洗涤和干燥珠粒以提供改进的多孔聚合物珠粒。

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