Cu⁰-mediated living radical polymerization (Cu⁰-mediated LRP) was employed in this research for the synthesis of starch-g-polyacrylamide (St-g-PAM). The use of a controlled radical grafting technique is necessary, as compared to the traditional free-radical polymerization methods, in order to obtain a well-defined structure of the final product. This is in turn essential for studying the relationship between such structure and the end-properties. Waxy potato starch-based water-soluble macroinitiator was first synthesized by esterification with 2-bromopropionyl bromide in the mixture of dimethylacetamide and lithium chloride. With the obtained macroinitiator, St-g-PAM was homogeneously synthesized by aqueous Cu⁰-mediated LRP using CuBr/hexamethylated tris(2-aminoethyl)amine (Me₆Tren) as catalyst. The successful synthesis of the macroinitiator and St-g-PAM was proved by NMR, FT-IR, SEM, XRD and TGA analysis. The molecular weight and polydispersity of PAM chains were analyzed by gel permeation chromatography (GPC) after hydrolyzing the starch backbone. Monomer conversion was monitored by gas chromatography (GC), on the basis of which the kinetics were determined. A preliminarily rheological study was performed on aqueous solutions of the prepared materials.

的Cu ⁰ -介导的活性自由基聚合（CU ⁰ -介导的LRP）在本研究中用于淀粉接枝的聚丙烯酰胺（ST-G-PAM）的合成。与传统的自由基聚合方法相比，必须使用受控的自由基接枝技术，以获得最终产品的明确定义的结构。反过来，这对于研究此类结构与最终属性之间的关系至关重要。蜡状马铃薯淀粉基水溶性大分子引发剂是通过在2-甲基乙酰胺和氯化锂的混合物中用2-溴丙酰溴进行酯化反应合成的。用得到的大分子引发剂，通过Cu ⁰水溶液均匀地合成St-g-PAM。CuBr /六甲基化的三（2-氨基乙基）胺（Me ₆ Tren）作为催化剂介导的LRP 。NMR，FT-IR，SEM，XRD和TGA分析证明了大分子引发剂和St-g-PAM的成功合成。水解淀粉主链后，通过凝胶渗透色谱法（GPC）分析PAM链的分子量和多分散性。通过气相色谱法（GC）监测单体转化率，在此基础上确定动力学。对制得的材料的水溶液进行了初步的流变学研究。