塑料科技2025，Vol.53Issue(4)：1-8,8.DOI:10.15925/j.cnki.issn1005-3360.2025.04.001
钴配合物催化醋酸乙烯酯自由基聚合的研究
Study on Cobalt Complex-catalyzed Free Radical Polymerization of Vinyl Acetate
摘要
Abstract
Three cobalt(Ⅱ)complexes containing different substituents were synthesized and characterized by infrared spectroscopy,mass spectrometry,and X-ray single-crystal diffraction.The polymerization of vinyl acetate(VAc)mediated by cobalt salicylaldehyde complexes with different substituents was investigated using azobisisobutyronitrile(AIBN)as a radical initiator.The effects of[AIBN]/[Co],monomer concentration,reaction time,and temperature on the molecular weight and molecular weight distribution of the polymer were explored.The results showed that complex 1 exhibited good catalytic performance in both bulk and solution polymerizations with AIBN.When the molar ratio of[VAc]/[AIBN]/[1]was 600/2/1,the polymerization reaction in toluene solution at 65℃for 20 hours yielded polyvinyl acetate with a number-average molecular weight close to the theoretical value and a relatively narrow molecular weight distribution.关键词
钴(Ⅱ)配合物/自由基聚合/醋酸乙烯酯/聚醋酸乙烯酯Key words
Cobalt(Ⅱ)complex/Radical polymerization/Vinyl acetate/Polyvinyl acetate分类
化学化工引用本文复制引用
张志超,宋柏洋,温朝阳,韩双..钴配合物催化醋酸乙烯酯自由基聚合的研究[J].塑料科技,2025,53(4):1-8,8.基金项目
辽宁省自然科学基金引导项目(2019-ZD-0086) （2019-ZD-0086）
辽宁省自然科学基金(2022-MS-293) （2022-MS-293）
中国科学院长春应用化学研究所电分析化学国家重点实验室开放课题基金项目(SKLEAC202204) （SKLEAC202204）
