The mixture of emulsifiers with opposite amphiphilicity was often necessary in generating multiple emulsions, whereas multiple emulsions might be generated by a single-component copolymer amphiphile. In this work, the emulsification of amphiphilic block copolymers poly (lauryl methacrylate)-b-poly (N-(2-methacryloylxyethyl) pyrrolidone) (PLMA_m-b-PNMP_n) in the water/dodecane systems was systematically studied by the confocal laser scanning microscopy and dynamic light scattering techniques. Interestingly, multiple emulsions instead of single emulsions were generated by employing single-component block copolymer amphiphiles PLMA_m-b-PNMP_n as emulsifiers under certain conditions. In specifically, the formation of multiple emulsions was highly depended on the molar ratio (r_PNMP/PLMA = n/m) between the PNMP and PLMA segments regardless of the molecular weight of block copolymers. Through introducing an aggregation-induced emission amphiphile poly (N-(2-methacryloyloxyethyl) pyrrolidone)-b-poly (lauryl methacrylate-co-1-ethenyl-4-(1,2,2-triphenylethenyl) benzene) (PNMP₃₅-b-P(LMA₄₂-co-TPE₁₆) into emulsifiers, the interfacial characters of multiple emulsions were also clarified. The complex emulsification of PLMA_m-b-PNMP_n was explained by a concordant manner based on the in-situ formed emulsifier mixture composed of PLMA_m-b-PNMP_n molecules and micelles, which were confirmed by the quantitative fluorescent analysis. It was found out that the preferred continuous phase of emulsions was mainly determined by the hydrophilicity of PLMA_m-b-PNMP_n molecules. However, the agglomeration of hydrophobic aggregates on the interfacial layer might inverse the amphiphilicity of mixed emulsifiers, and thereby resulting in the formation of multiple emulsions.

具有相反两亲性的乳化剂的混合物通常是产生多重乳液所必需的，而多重乳液可能由单组分共聚物两亲物产生。在这项工作中，两亲性嵌段共聚物聚（甲基丙烯酸月桂酯）- b -聚（N -（2-甲基丙烯酰基乙氧基）吡咯烷酮）（PLMA _m - b -PNMP _n）在水/十二烷系统中的乳化是通过共聚焦系统研究的激光扫描显微镜和动态光散射技术。有趣的是，通过使用单组分嵌段共聚物两亲物 PLMA _m - b -PNMP _{n生成多重乳液而不是单一乳液}在一定条件下用作乳化剂。具体而言，多重乳液的形成高度依赖于 PNMP 和 PLMA 链段之间的摩尔比 ( r _PNMP/PLMA = n / m )，而与嵌段共聚物的分子量无关。通过引入聚集诱导发光的两亲物聚( N- (2-甲基丙烯酰氧乙基)吡咯烷酮) -b-聚(甲基丙烯酸月桂酯-co - 1-乙烯基-4-(1,2,2-三苯基乙烯基)苯)(PNMP _35- b -P(LMA ₄₂ - co -TPE ₁₆) 转化为乳化剂，多重乳液的界面特征也得到阐明。_{基于由PLMA m} - b -PNMP _n分子和胶束组成的原位形成的乳化剂混合物，通过一致的方式解释了PLMA _m - b -PNMP _{n的复合乳化，这通过定量荧光分析得到证实。}发现乳液的优选连续相主要由PLMA _m - b -PNMP _{n的亲水性决定}分子。然而，疏水性聚集体在界面层上的团聚可能会逆转混合乳化剂的两亲性，从而导致多重乳液的形成。