Flocculation is one of the commonly used sludge conditioning methods in water supply plants, which can improve the sludge dewatering performance by reducing the specific resistance of sludge (SRF), decreasing the amount of sludge, and finally lowering the transportation cost and subsequent disposal cost of sludge. Therefore, it is particularly important to develop new and efficient flocculants. In this paper, the template copolymer of acryloxy trimethylammonium chloride (DAC) and acrylamide (AM) was successfully synthesized by microwave-template copolymerization (MV-TP) using sodium polyacrylate (NaPAA) as template. The template copolymer was analyzed by infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), nuclear magnetic resonance hydrogen spectroscopy (¹H NMR), and scanning electron microscopy (SEM). It was found that this template copolymer had obvious cationic microblock structure. In addition, the test results of association constant (K_M) and polymerization kinetics showed that the MW-TP was assigned to free radical initiated polymerization and the polymerization mechanism was I Zip-up (ZIP). It confirmed the formation of cation fragment structure again. Due to its dense positive charges in this new cationic microblock structure, it greatly improved the functions of electric neutralization, electrical patching, and adsorption bridging. The cationic fragment structure in the template copolymer could help to generate large and dense floc structure and form stable drainage channels. Under external pressure, these large and compact floc structures had greater compressive resistance, which avoided deformation and blockage of drainage channels and voids. It was beneficial to reduce SRF and evidently enhanced sludge dewatering performance.

絮凝是供水厂常用的污泥调理方法之一，它可以通过降低污泥的比电阻（SRF），减少污泥量，最终降低运输成本和后续处理成本来提高污泥脱水性能。污泥。因此，开发新型高效絮凝剂显得尤为重要。本文以聚丙烯酸钠（NaPAA）为模板剂，通过微波-模板共聚（MV-TP）方法成功合成了丙烯酰氧基三甲基氯化铵（DAC）和丙烯酰胺（AM）的模板共聚物。通过红外光谱（FT-IR）、X射线光电子能谱（XPS）、核磁共振氢谱（¹H NMR）和扫描电子显微镜（SEM）。发现该模板共聚物具有明显的阳离子微嵌段结构。此外，结合常数（K _M) 和聚合动力学表明 MW-TP 属于自由基引发聚合，聚合机制为 I Zip-up (ZIP)。再次证实了阳离子片段结构的形成。由于这种新型阳离子微块结构中的正电荷密集，大大提高了电中和、电修补和吸附桥接的功能。模板共聚物中的阳离子片段结构有助于产生大而致密的絮体结构，形成稳定的排水通道。在外压作用下，这些大而致密的絮状结构具有更大的抗压能力，避免了排水通道和空隙的变形和堵塞。有利于降低SRF，显着提高污泥脱水性能。