Polymerization of ethylene (E)/methyl methacrylate (MMA) was carried out by late-transition-metal catalyst and co-catalysts such as methylaluminoxane (MAO), ethylaluminum sesquichloride (Al₂Cl₃Et₃), and modified methylaluminoxane (MMAO). Moreover, for precise study and profound understanding of the reactions, polymerization of MMA was performed with co-catalysts in the absence of ethylene and catalyst. The samples were analyzed using differential scanning calorimetry (DSC) to determine glass transition temperature (T_g) and melting temperature (T_m). Molecular weights (M̅_w) were determined by methods of gel permission chromatography (GPC) and rheometric mechanical spectroscopy (RMS). ¹³C NMR was applied for recognition of molecular structure, the number of branches, and tacticity. At first, the formation of E/MMA copolymer was expected but in the resulting polymer, two homopolymers of polyethylene and polymethyl methacrylate were obtained instead of E/MMA copolymer. After analyzing the results, it was found that two separate reactions govern the polymerization system, one coordination catalytic polymerization of ethylene, and the second Lewis acid cationic polymerization of MMA. Also, highly branched PE (315 branches per 1000 carbon atoms) with the highest M̅_w (180,500 g/mol) was obtained at 30 ºC, 1 bar ethylene pressure, and 15 mL MMA. The highly syndiotactic PMMA was achieved by co-catalyst of MAO and Al₂Cl₃Et₃ with T_g about 130 ºC whereas PMMA generated from MMAO has T_g about 110 ºC or less than 110 ºC.

乙烯（E）/甲基丙烯酸甲酯（MMA）的聚合通过后过渡金属催化剂和助催化剂进行，例如甲基铝氧烷（MAO），倍半氯化乙基铝（Al ₂ Cl ₃ Et ₃）和改性甲基铝氧烷（MMAO） 。此外，为了进行精确的研究和对反应的深刻理解，在不存在乙烯和催化剂的情况下，使用助催化剂进行了MMA的聚合反应。使用差示扫描量热法（DSC）分析样品，以确定玻璃化转变温度（T _g）和熔融温度（T _m）。分子量（M _{w ^}通过凝胶许可色谱法（GPC）和流变机械光谱法（RMS）的方法确定。^应用13 C NMR识别分子结构，支链数和立构规整度。首先，期望形成E / MMA共聚物，但是在所得聚合物中，获得了聚乙烯和聚甲基丙烯酸甲酯的两种均聚物，而不是E / MMA共聚物。分析结果后，发现聚合反应体系由两个独立的反应控制，一个是乙烯的配位催化聚合反应，另一个是MMA的路易斯酸阳离子聚合反应。此外，高度最高的中号支PE（每1000个碳原子315级的分支）_瓦特在30℃，1巴乙烯压力和15毫升MMA的条件下获得（180,500 g / mol）。高度间同立构聚甲基丙烯酸甲酯是由MAO和Al的助催化剂来实现₂氯₃的Et ₃与Ť_克约130ºC而PMMA从MMAO产生具有Ť_克约110ºC或小于110ºC。