摘要:
采用聚苯乙烯(PS)空心微球为模板,间苯二酚-甲醛(RF)为前驱体溶液,邻苯二甲酸二丁酯为分散剂,以界面聚合反应为基础初步总结出一条PS-RF双层聚合物空心微球的制备工艺,并就制备过程中RF溶液与分散剂油相的选择、预聚时间、搅拌速率、固化温度等影响因素进行了讨论。当RF溶液质量分数为25%,间苯二酚与碳酸钠的物质的量之比为100,预聚24 h，搅拌速率120～200 r/min,固化温度35 ℃时，制得了球形度和同心度达到95%以上,表面粗糙度小于10 nm的PS-RF双层空心微球。
Abstract:
Based on interfacial polymerization reaction, PS-RF double shell microspheres were synthesized using polystyrene (PS) hollow microspheres as template, RF solution as precursor and dibutyl phthalate as dispersant. The factors, such as the choice of RF solution and oil, prepolymerization time, stirring rate and solidification temperature, which affect the process, have been preliminarily discussed. As the polymerization reaction was occurring in the following conditions: RF solution was 25%, the molar ratio of resorcinol to sodium carbonate was 100, prepolymerization time was 24 hours, stirring rate was 120～200 r/min, and solidification temperature was 35 ℃, the experiment has fabricated PS-RF double-layered hollow microsphere, whose degree of sphericity and concentricity are over 95% and
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