SPECTROSCOPIC PROBES FOR HYDROGEN-BONDING, EXTRACTION IMPREGNATION AND REACTION IN SUPERCRITICAL FLUIDS

被引：25

作者：

COOPER, AI

HOWDLE, SM

HUGHES, C

JOBLING, M

KAZARIAN, SG

POLIAKOFF, M

SHEPHERD, LA

JOHNSTON, KP

机构：

[1] UNIV NOTTINGHAM, DEPT CHEM, NOTTINGHAM NG7 2RD, ENGLAND

[2] UNIV TEXAS, DEPT CHEM ENGN, AUSTIN, TX 78712 USA

来源：

ANALYST | 1993年 / 118卷 / 09期

关键词：

SUPERCRITICAL FLUID; HYDROGEN BONDING; IMPREGNATION; POLYETHYLENE; PHOTOCHEMICAL REACTION;

D O I：

10.1039/an9931801111

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Spectroscopy is used for monitoring a number of processes relevant to solution, extraction and impregnation in supercritical CO2 (scCO2). Examples include: a combined infrared (IR) and ultraviolet study of the interaction between para-hydroquinone (HQ) and tributyl phosphate in scCO2, which reveals hydrogen bonding, detected by the characteristic nu(O-H) IR bands; IR measurement of the solubility of CpMn(CO)3 (CP = eta5-C5H5) in SCCO2 as a function of temperature and pressure; an investigation of the uniformity of supercritical impregnation of CpMn(CO)3 into 4 mm diameter pellets of polyethylene (PE) using Fourier-transform infrared (FTIR) microscopy and FTIR depth profiling by photoacoustic detection; and an IR study of the photochemical reaction of CpMn(CO)3 with N2 with PE film.

引用

页码：1111 / 1116

页数：6

共 33 条

[21]

KAZARIAN SG, UNPUB

[22]

LEE ML, 1990, ANAL SUPERCRITICAL C

[23] CHEMICAL COMPLEXING AGENTS FOR ENHANCED SOLUBILITIES IN SUPERCRITICAL FLUID CARBON-DIOXIDE [J].