Iodine Transfer Polymerization (ITP with CHI3) and Reversible Chain Transfer Catalyzed Polymerization (RTCP with Nitrogen Catalyst) of Methyl Methacrylate in Aqueous Microsuspension Systems: Comparison with Bulk System

2012 ◽  
Vol 45 (5) ◽  
pp. 2286-2291 ◽  
Author(s):  
Yukiya Kitayama ◽  
Mika Yorizane ◽  
Hideto Minami ◽  
Masayoshi Okubo
Keyword(s):  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Iodine Transfer ◽  
Reversible Chain Transfer ◽  
Bulk System ◽  
Catalyzed Polymerization

Reversible Chain Transfer Catalyzed Polymerization of Methyl Methacrylate with In-Situ Formed Alkyl Iodide Initiator

2009 ◽  
Vol 62 (11) ◽  
pp. 1492 ◽  
Author(s):  
Atsushi Goto ◽  
Koji Nagasawa ◽  
Ayaka Shinjo ◽  
Yoshinobu Tsujii ◽  
Takeshi Fukuda
Keyword(s):  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Alkyl Iodide ◽  
Nitrogen And Phosphorus ◽  
Molecular Weights ◽  
Living Radical Polymerizations ◽  
Low Mass ◽  
Reversible Chain Transfer ◽  
Catalyzed Polymerization

A method utilizing generation of an alkyl iodide (low-mass dormant species) in situ formed in polymerization was adopted to reversible chain transfer catalyzed polymerizations (RTCP) (living radical polymerizations) with several nitrogen and phosphorus catalysts. The polymerization of methyl methacrylate afforded low-polydispersity polymers (Mw/Mn ~1.2–1.4), with Mn values predicted to high conversions; where Mn and Mw are the number- and weight-average molecular weights respectively. This method is robust and would enhance the utility of RTCP.

Reversible Chain Transfer Catalyzed Polymerization (RTCP) of Methyl Methacrylate with Nitrogen Catalyst in an Aqueous Microsuspension System

2010 ◽  
Vol 43 (21) ◽  
pp. 8703-8705 ◽  
Author(s):  
Mika Yorizane ◽  
Takashi Nagasuga ◽  
Yukiya Kitayama ◽  
Atsushi Tanaka ◽  
Hideto Minami ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Reversible Chain Transfer ◽  
Catalyzed Polymerization
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