𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Photopolymerization of acrylamide in an annular flow reactor

✍ Scribed by Dan Sandru; J. M. Smith

Publisher
American Institute of Chemical Engineers
Year
1973
Tongue
English
Weight
811 KB
Volume
19
Category
Article
ISSN
0001-1541

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Rates of homogeneous polymerization of aqueous solutions of acrylamide were measured in an annular flow reactor at 35Β°C. By independent determinations of the quantum yield for the initiation step and the light intensity, it was possible to identify reaction orders and to calculate ratios of rate constants for the polymerization process.

An empirical kinetics model, based upon producing activated molecules solely from initiator (K~2~S~2~O~8~), best fit the data. According to this model the rate is 3/2 order in monomer concentration, 1/2 order in initiator, and proportional to the 1/2 power of the intensity of absorbed radiation. The effect of monomer concentration on the induction period and tlie 3/2 order with respect to monomer indicate a complex initiation process.

πŸ“œ SIMILAR VOLUMES

Mass transfer in annular cylindrical rea
Mass transfer in annular cylindrical reactors in laminar flow
✍ Jean-LΓ©on Houzelot; Jacques Villermaux πŸ“‚ Article πŸ“… 1977 πŸ› Elsevier Science 🌐 English βš– 532 KB

Rachal dlffuslonal mass transfer 1s stuched m a flmd flowmg m fully developed lammar flow m an annular cyhndncal reactor m which a first order heterogeneous reactlon LS takmg place at the wall The asymptotic behavlour of the concentration decrease far from the reactor inlet IS especially mvestlgated

Analysis of centrifugal annular reactor
Analysis of centrifugal annular reactor with radial flow
✍ Naseem Yacoub; David Moalem Maron πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 English βš– 545 KB

model for centrifugal annular catalytic reactor is presented. The gas flows radially through the annulus while the inner cylinder is rotated to produce the centrifugal effect. A catalytic consecutive reaction takes place at the external surface of the annulus. Tl-q reactor is aimed to utilize the fa

Photopolymerization in an isothermal and
Photopolymerization in an isothermal and continuous stirred tank reactor: Concentration stability
✍ H. T. Chen; C. N. Kuan; D. J. Lin πŸ“‚ Article πŸ“… 1982 πŸ› American Institute of Chemical Engineers 🌐 English βš– 548 KB

## Abstract An investigation of photopolymerization in an isothermal and continuous stirred tank reactor (CSTR) was made. The existence of multiple steady states induced by gel effects was demonstrated theoretically and experimentally. This multiple steady state problem is presented in relation to