Influence of the operating conditions on the catalytic activity of [PdCl2(dapp)] in the CO-ethene copolymerization in the H2O-CH3COOH as a solvent (dapp=1,3-bis(di(2-methoxyphenyl)phosphino)propane)

被引：8

作者：

Vavasori, Andrea ^{[1
]}

Dall'Acqua, Federico ^{[1
]}

Cavinato, Gianni ^{[2
]}

Toniolo, Luigi ^{[1
]}

机构：

[1] Univ Ca Foscari Venice, Dept Chem, Consortium INSTM RU Venice, I-30123 Venice, Italy

[2] Univ Padua, Dept Chem Sci, I-35131 Padua, Italy

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2010年 / 332卷 / 1-2期

关键词：

Palladium; Chloride; Dapp; Carbon monoxide-ethene; copolymerization; Water-acetic acid; ACETIC ACID-WATER; CARBON-MONOXIDE; ALTERNATING COPOLYMERIZATION; PALLADIUM(II) COMPLEXES; MOLECULAR-WEIGHT; ETHYLENE; METHOXYCARBONYLATION; CARBONYLATION; ALKENES; OLEFINS;

D O I：

10.1016/j.molcata.2010.09.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence on the productivity of[PdCl2(dapp)] in H2O-CH3COOH in the CO-ethene copolymerization and on the LVN of the copolymer of the following reaction parameters has been studied: (i) composition of the H2O-CH3COOH reaction medium; (ii) temperature; (iii) CO/ethene ratio at a given total pressure; (iv) total pressure at fixed ratio CO/ethene = 1/1; (v) CO or ethene partial pressure at a given pressure of one monomer; (vi) reaction time. High molecular weight PKs are obtained under high pressure with the monomers in the ratio 1/1 at relatively low temperature and with a H2O/CH3COOH 40-50% with productivity ranging from 4 to 20 kg PK(g Pd h)(-1). The relation between productivity and LVN has been discussed in the light of the key steps of the catalytic cycle. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：158 / 164

页数：7

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