Copolymerization of vinylene carbonate with vinyl thiolacetate and N,N,N-triethyl-N-[2-(methacryloxy) ethyl]ammonium iodide with 4-vinylpyridine
作者:C. G. Overberger、H. Biletch、R. G. Nickerson
DOI:10.1002/pol.1958.1202711529
日期:——
Copolymerization reactivity ratios for the system vinyl thiolacetate (M1)-vinylene carbonate (M2) have been determined to be r1 = 12.9 ± 1.1 and r2 = 0.04 ± 0.01 by the method of Fineman and Ross. For the system 4-vinylpyridine (M1) and N,N,N-triethyl-N-[2-(methacryloxy)ethyl]ammonium iodide (M2)r1 = 0.30 ± 0.02 and r2 = 0.61 ± 0.09 as determined by use of the “integrated equation” of Mayo and Lewis
根据 Fineman 和 Ross 的方法,硫代乙酸乙烯酯 (M1)-碳酸亚乙烯酯 (M2) 系统的共聚反应活性比已确定为 r1 = 12.9 ± 1.1 和 r2 = 0.04 ± 0.01。对于系统 4-乙烯基吡啶 (M1) 和 N,N,N-三乙基-N-[2-(甲基丙烯酰氧基)乙基]碘化铵 (M2) r1 = 0.30 ± 0.02 和 r2 = 0.61 ± 0.09,通过使用梅奥和刘易斯的“综合方程”。通过将硫代乙酸乙烯酯和碳酸亚乙烯酯的共聚物水解,制备了碱溶性、易氧化的巯基共聚物。巯基共聚物作为一种成功的短寿命电离辐射预防剂而受到关注。