文献类型：专利

英文题名：Temperature sensitive gel core-shell structure nanoparticles preparation by reacting polybutadiene latex particle, water soluble thermal initiator, N-isopropylacrylamide monomer, and N,N'-methylenebisacrylamide crosslinking agent

作者：LI G;LI L;GUO X;CHEN H;LI W;LIU Y;FANG D;XU J;ZHANG R

机构：[1]UNIV EAST CHINA SCI&TECHNOLOGY

申请号：CN102827330-A

申请日：2012-09-11

公开日：2012-12-19

语种：英文

收录：DERWENT

摘要：NOVELTY - Temperature sensitive gel core-shell structure nanoparticles preparation comprises using polybutadiene latex particle as core; purifying by deionized water until the electrical conductivity of water discharged is not changed; adding the polybutadiene inner core and water into the reactor; uniformly stirring; vacuumizing and filling nitrogen gas; raising the temperature to 60-80 degrees C under the protection of nitrogen; adding water soluble thermal initiator; adding N-isopropylacrylamide monomer and N,N'-methylenebisacrylamide crosslinking agent; and reacting. USE - Preparation of temperature sensitive gel core-shell structure nanoparticles used as nanoreactor for use as catalyst and/or nanosilver fungicide carrier (all claimed). ADVANTAGE - The temperature sensitive gel core-shell structure nanoparticles have controllable particle size and particle size distribution. DETAILED DESCRIPTION - Temperature sensitive gel core-shell structure nanoparticles preparation comprises using polybutadiene latex particle as core; purifying by deionized water until the electrical conductivity of water discharged is not changed; adding the polybutadiene inner core and water into the reactor; uniformly stirring at 250-400 revolutions/minute; vacuumizing and filling nitrogen gas for 3-5 times; raising the temperature to 60-80 degrees C under the protection of nitrogen; adding water soluble thermal initiator; adding N-isopropylacrylamide monomer and N,N'-methylenebisacrylamide crosslinking agent; and reacting for 1-2.5 hours to obtain temperature sensitive gel core-shell structure nanoparticles dispersed in water. The water soluble thermal initiator is hydrogen peroxide or potassium persulfate. The mass ratio of water soluble thermal initiator and polybutadiene core is 0.1-0.2:1. The mass ratio of N-isopropylacrylamide monomer and polybutadiene core is 0.5-1:1. The mass ratio of N,N'-methylenebisacrylamide crosslinking agent and N-isopropylacrylamide monomer is 0.01-0.1:1.