On-Line Optimizing Control of Bulk Free Radical Polymerization Reactors under Temporary Loss of Temperature Regulation:  Experimental Study on a 1-L Batch Reactor

2006 ◽  
Vol 45 (22) ◽  
pp. 7530-7539 ◽  
Author(s):  
Shrikant A. Bhat ◽  
Deoki N. Saraf ◽  
Sanjay Gupta ◽  
Santosh K. Gupta
2012 ◽  
Vol 21 (10) ◽  
pp. 683-688 ◽  
Author(s):  
Vahid Najafi ◽  
Farshid Ziaee ◽  
Kourosh Kabiri ◽  
Mohammad Jalal Zohouriaan Mehr ◽  
Hossein Abdollahi ◽  
...  

2002 ◽  
Vol 41 (24) ◽  
pp. 6120-6131 ◽  
Author(s):  
Costas Kiparissides ◽  
Panagiotis Seferlis ◽  
George Mourikas ◽  
A. Julian Morris

Author(s):  
Mariya Edeleva ◽  
Yoshi W. Marien ◽  
Paul H. M. Van Steenberge ◽  
Dagmar R. D'hooge

Conventional batch solution free radical polymerization of n-butyl acrylate with thermal initiators such as AIBN is known to be strongly exothermic and influenced by highly activated side reactions such as backbiting and β-scission.


In the free-radical polymerization of vinyl monomers, initiator can be lost by chain transfer. This loss affects the monomer conversion with time in a batch reactor and can influence the expected molecular mass of the polymer as the reaction proceeds. Expressions are developed which allow these effects to be quantified. Examples indicate when these effects are important. The instantaneous number-average degree of polymerization passes through a minimum as the initiator concentration is increased. The location of this minimum depends on the importance of initiator loss by chain transfer. Initial monomer concentration affects the absolute value of molecular mass but has little influence on the relative effects of initiator loss by chain transfer.


Author(s):  
Gerardo M. Pineda-Torres ◽  
Cecilia Durán-Valencia ◽  
Fernando Barragán-Aroche ◽  
Simon López-Ramírez

Sign in / Sign up

Export Citation Format

Share Document