PALLADIUM-CATALYZED ALTERNATING COPOLYMERIZATION OF PROPYLENE AND CARBON-MONOXIDE - FORMATION OF POLY(SPIROKETAL KETONE)

被引：44
|
作者：
WONG, PK [1 ]
VANDOORN, JA [1 ]
DRENT, E [1 ]
SUDMEIJER, O [1 ]
STIL, HA [1 ]
机构：
[1] SHELL INT RES MAATSCHAPPIJ BV,KONINKLIJKE SHELL LAB AMSTERDAM,1031 CM AMSTERDAM,NETHERLANDS
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1993年 / 32卷 / 05期
关键词：
D O I：
10.1021/ie00017a032
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
High molecular weight alternating copolymers of propylene and carbon monoxide were prepared using a cationic palladium complex modified with 1,3-bis(di-n-butylphosphino)propane. Solid-state C-13 NMR analysis showed the presence of unexpected ketal repeat units in the isolated polymers which upon heating or dissolution in hexafluoro-2-propanol were converted into ketones. A mechanism involving intramolecular polymerization of ketone and depolymerization of poly(spiroketal) is proposed to account for the observations.
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页码：986 / 988
页数：3
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