摘要
采用可聚合乳化剂(含双键的烷基醚硫酸盐,V-20S),以丙烯酸丁酯(BA)、甲基丙烯酸甲酯(MMA)、甲基丙烯酸十二氟庚酯(DFHM)为单体,通过半连续滴加法合成了稳定核-壳结构的含氟丙烯酸酯共聚物乳液.研究了合成工艺条件对共聚物乳液及共聚物膜表面性能的影响,得出合成共聚物乳液的最佳工艺条件为:BA/MMA的质量比为2,引发剂过硫酸胺(APS)、V-20S用量分别为单体总质量的0.5wt%和2.0wt%.TEM证实了共聚乳液的核-壳结构;当DFHM为总单体的20wt%时,共聚物样品膜经XPS测得表面的氟元素含量可达11.37%,且表面接触角达到91°.
A stable fluoroacrylate copolymer emulsion with core-shell structure was prepared by semi-continuous emulsion polymerization.The raw material monomers were BA,MMA and DFHM.V-20S was provided as reactive surfactant.Influence of the synthesis conditions on the copolymer emulsion and surface properties of copolymer membrane were researched.Then the optimum conditions were obtained as follows： the mass ratio of BA to MMA was 2,the quality of the initiators（APS） and the emulsifier（V-20S） were 0.5wt% and 2.0wt% of the total monomers,respectively.The core-shell structure of the copolymer emulsion was confirmed through transmission electron microscopy（TEM） test.When the quality of DFHM was 20wt% of the total monomers,the surface fluorine content reached 11.37%,and the surface contact angle reached 91°.
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2010年第3期97-103,共7页
Journal of Anhui University(Natural Science Edition)
基金
国家自然科学基金资助项目(200471001)
安徽省自然科学基金资助项目(070414193)
关键词
可聚合乳化剂
乳液聚合
含氟丙烯酸酯
reactive surfactant
emulsion polymerization
fluoroacrylate
