乙烯萘的选择聚合。
Syndioselective Polymerization of Vinylnaphthalene.
机构信息
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
Key Laboratory of Automobile Materials of Ministry of Education, Department of Materials Science and Engineering, Jilin University, Changchun, 130025, P. R. China.
出版信息
Macromol Rapid Commun. 2019 Jun;40(12):e1900061. doi: 10.1002/marc.201900061. Epub 2019 Apr 5.
Coordination polymerizations of 1-vinylnaphthalene (1VN), 2-vinylnaphthalene (2VN) and 6-methoxy-2-vinylnaphthalene (MVN) are carried out at room temperature by using the half-sandwich scandium precursor FluSiMe Sc(CH SiMe ) (THF) (1) and the constrained geometry configuration rare-earth metal precursors FluCH PyLn(CH SiMe ) (THF) [Flu = C H , Py = C H N; Ln = Sc (2a), n = 0; Ln = Lu (2b), Y(2c), n = 1]. Atactic poly(1VN) and perfect syndiotactic poly(2VN) and poly(MVN) are produced by precursors 2a-2c in a controlled way. Treatment of poly(MVN) with boron tribromide at -20 °C provides a syndiotactic poly(6-hydroxy-2-vinylnaphthalene).
室温下，通过使用半夹心钪前体 FluSiMe Sc(CH SiMe )(THF)(1)和受限几何构型稀土金属前体 FluCH PyLn(CH SiMe )(THF) [Flu = C H, Py = C H N; Ln = Sc(2a), n = 0; Ln = Lu(2b), Y(2c), n = 1]，对 1-乙烯基萘(1VN)、2-乙烯基萘(2VN)和 6-甲氧基-2-乙烯基萘(MVN)进行配位聚合。前体 2a-2c 以可控的方式生成无规立构聚(1VN)和全同立构聚(2VN)以及聚(MVN)。在-20℃下用三溴化硼处理聚(MVN)，可得到全同立构聚(6-羟基-2-乙烯基萘)。
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