Pickering emulsion polymerization is a practical method to fabricate functional composite materials. However, most reported systems proceed homogeneously within the stabilized monomer phase and create nondegradable chemical bonds. Here, interfacial Pickering emulsion polycondensation between aromatic aldehydes and polymercaptans is developed using sustainable cellulose nanoparticles as the stabilizer. When sulfonated cellulose nanocrystals (S-CNCs) were utilized, they also catalyzed the polycondensation to produce the oxidatively degradable S,S-acetal groups on the polymer chains. The influence of monomer and cellulose structures on the polymerization behavior and composite properties were compared.

中文翻译：

---

用于可降解纳米复合材料的界面 Pickering 乳液缩聚反应


皮克林乳液聚合是制备功能性复合材料的一种实用方法。然而，大多数报道的系统在稳定的单体相中均匀进行并产生不可降解的化学键。在这里，芳香醛和聚合物captans之间的界面Pickering乳液缩聚反应是使用可持续的纤维素纳米颗粒作为稳定剂开发的。当使用磺化纤维素纳米晶 （S-CNC） 时，它们还催化缩聚反应，在聚合物链上产生可氧化降解的 S，S-缩醛基团。比较了单体和纤维素结构对聚合行为和复合材料性能的影响。