Concept

Calorimeter

Related publications (120)

Reaction Calorimetry as a New Tool for Supercritical Fluids

Thierry Meyer, Sophie Fortini, Frédéric Lavanchy

Reaction calorimetry is an efficient tool used to obtain kinetic, thermodn., and safety data. A new tool, composed of a high-pressure reactor (HP350) coupled with a Mettler-Toledo RC1e reaction calorimeter, is developed for the investigation of chem. react ...

2004

A microreactor-based system for the study of fast exothermic reactions in liquid phase: characterization of the system

Peter Ryser, Thomas Maeder, Francis Stoessel, Marie-Agnès Schneider

A new system combining a microreactor and a microcalorimetric chip was investigated. The small size of the microreactor channel permits maintaining isothermal conditions necessary for the kinetic characterization of highly exothermic reactions. These condi ...

2004

TTT - Cure diagram of an anhydride-cured epoxy system including gelation, vitrification, curing kinetics model and monitoring of the glass transition temperature

Véronique Michaud

The curing reaction of an epoxy resin [diglycidyl ether of bisphenol A (DGEBA)] combined with a methyl-hexahydrophtalic anhydride (MHHPA) hardener and a benzyldimethylamine (BDMA) accelerator was studied over a temperature range of 60140°C to build its is ...

2004

Dehydrogenation of methanol to anhydrous formaldehyde in a microstructured reactor system

Albert Renken

An integrated microreactor system for the direct dehydrogenation of methanol to water-free formaldehyde was developed. The endothermic reaction can be homogeneously catalyzed with evapd. sodium. At reaction temps. of up to 1100 K nearly complete conversion ...

2003

Supercritical calorimetry: an emerging field

Thierry Meyer, Sophie Fortini, Frédéric Lavanchy

Calorimetry (adiabatic, isothermal, differential, oscillating or acoustic) is generally based on heat-flow measurements of the studied system. Most of its applications are dedicated to kinetic-parameter detn., safety studies and process optimization, phase ...

Schweizerische Chemische Gesellschaft2002

Development of a large-scale biocalorimeter to monitor and control bioprocesses

Urs von Stockar, Ian William Marison, Patrick Pugeaud

Calorimetry has shown real potential at bench-scale for chem. and biochem. processes. The aim of this work was therefore to scale-up the system by adaptation of a std. com. available 300-L pilot-scale bioreactor. To achieve this, all heat flows entering or ...

2002

Quantitative calorimetric investigation of fed-batch cultures of Bacillus sphaericus 1593M

Urs von Stockar, Ian William Marison

For many years, calorimetry has been recognized as a powerful and universal tool for monitoring chem. and biol. processes. A lab.-scale reaction calorimeter (RC1, Mettler-Toledo), initially developed for chem. reaction studies with a sensitivity of 100-150 ...

2002

The development and characterization of a high resolution bio-reaction calorimeter for weakly exothermic cultures

Urs von Stockar, Ian William Marison

A unique bench-scale heat flux calorimeter is described, which is capable of detecting the low heat signal of an animal cell culture (a max. of 200 mW/l is produced with a batch culture of SF9 insect cells). After the tech. modifications that enhanced the ...

2002

Initiation Mechanisms of an Anionic Ring Opening Polymerisation for Lactam 12

Pierre-Etienne Bourban

A novel liquid system has been developed to initiate the anionic polymerization of lactam-12. This system, containing both an activator and a catalyst, has the primary advantage over previous systems of permitting infinite storage of the reactant, and it a ...

2002

Fluorescent star-shaped polystyrenes: "Core-first" synthesis from perylene-based ATRP initiators and dynamic mechanical solid-state properties

Harm-Anton Klok

This paper describes the synthesis of two novel tetra 2-bromoisobutyric acid-substituted perylene fluorophores and their use as initiators for the atom transfer radical polymerization of styrene. Different star-shaped polystyrenes covering a wide range of ...

2002

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