In this work, amphiphilic copolymers D-A_n based on the dynamic imine bonds were generated in-situ in the aqueous solutions by two water-soluble precursors, the random copolymer poly(N-(2-methacryloylxyethyl)-random-poly(4-(formaldehyde) phenyl methacrylate) (PNMP₈₃-co-PBFMA₄, Precursor D) and alkylamines (Precursor A_n, n represents the carbon number in the alkyl chain that is ranging from 4 to 10). Amphiphiles D-A_n formed micelles spontaneously in the aqueous solutions, which were studied by the surface tension and cryogen-transmission electron microscopy (cryo-TEM) measurements. Moreover, the CO₂/N₂ responsive micellization of D-A_n due to the reversible formation and breaking of the dynamic imine bond (-CH=N-) was confirmed by the nuclear magnetic resonance (NMR) measurements. Accordingly, the emulsification of dynamic covalent amphiphilic copolymers D-A_n was studied in detail. O/W Pickering emulsions with excellent stability were commonly generated by employing D-A_n as emulsifiers regardless of n and the nature of oil employed, which was significantly different from the weak emulsification of either precursor D or precursor A_n. The synergistic emulsification of D-A_n monomers and micelles was proved to be the major cause as evidenced by the confocal laser scanning microscopy (CLSM) method. Noticeably, the abundant alkylamines were also advantageous in stabilizing emulsions. Attributing to the stimuli-responses of amphiphiles D-A_n to CO₂/N₂, the stability of Pickering emulsions could be reversibly controlled by CO₂/N₂ as well.

在这项工作中，基于动态亚胺键的两亲共聚物 DA _n由两种水溶性前体在水溶液中原位生成，即无规共聚物聚（N-（2-甲基丙烯酰氧基）-无规-聚（4-）甲醛) 甲基丙烯酸苯酯) (PNMP ₈₃ - co -PBFMA ₄ , 前体 D) 和烷基胺 (前体 A _{n ,} n表示烷基链中的碳数为 4 至 10)。通过表面张力和冷冻剂透射电子显微镜 (cryo-TEM) 测量来研究水溶液。此外，CO由于动态亚胺键（-CH=N-）的可逆形成和断裂，DA _n的2 /N ₂响应性胶束化通过核磁共振（NMR）测量得到证实。因此，对动态共价两亲共聚物DA _n的乳化作用进行了详细研究。无论n和所用油的性质如何，通常都使用 DA _n作为乳化剂产生具有优异稳定性的 O/W Pickering 乳液，这与前体 D 或前体 A _n的弱乳化显着不同。DA _{n的协同乳化}共聚焦激光扫描显微镜 (CLSM) 方法证明，单体和胶束是主要原因。值得注意的是，丰富的烷基胺也有利于稳定乳液。由于两亲物DA _n对CO ₂ /N ₂的刺激反应，皮克林乳液的稳定性也可以被CO ₂ /N ₂可逆地控制。