Polyethylene materials with in-chain ketones from nonalternating catalytic copolymerization

被引:194
作者
Baur, Maximilian [1 ]
Lin, Fei [1 ]
Morgen, Tobias O. [1 ]
Odenwald, Lukas [1 ]
Mecking, Stefan [1 ]
机构
[1] Univ Konstanz, Dept Chem, Univ Str 10, D-78457 Constance, Germany
基金
欧洲研究理事会;
关键词
ALTERNATING COPOLYMERIZATION; NICKEL-CATALYSTS; CARBON-MONOXIDE; ETHYLENE; OLIGOMERIZATION; POLYMERIZATION; OLEFINS; DISCOVERY;
D O I
10.1126/science.abi8183
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The world's most abundantly manufactured plastic, polyethylene, consists of inert hydrocarbon chains. The introduction of reactive polar groups in these chains could help overcome problematic environmental persistence and enhance compatibility with other materials. We show that phosphinophenolate-coordinated nickel complexes can catalyze nonalternating copolymerization of ethylene with carbon monoxide to incorporate a low density of individual in-chain keto groups in polyethylene chains with high molecular weight while retaining desirable material properties. After processing by conventional injection molding techniques, tensile properties remain on par with those of standard high-density polyethylene while also imparting photodegradability.
引用
收藏
页码:604 / +
页数:50
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