Elastomeric Poly(propylene) from “Dual-side” Metallocenes: Reversible Chain Transfer and its Influence on Polymer Microstructure

2006 ◽  
Vol 207 (7) ◽  
pp. 665-683 ◽  
Author(s):  
Sabine Hild ◽  
Cecilia Cobzaru ◽  
Carsten Troll ◽  
Bernhard Rieger
Keyword(s):  
Chain Transfer ◽  
Polymer Microstructure ◽  
Reversible Chain Transfer ◽  
Poly Propylene

scholarly journals Heterotelechelic poly(propylene oxide) as migration-inhibited toughening agent in hot lithography based additive manufacturing

2021 ◽  
Vol 12 (9) ◽  
pp. 1260-1272
Author(s):  
Daniel Grunenberg ◽  
Katharina Ehrmann ◽  
Christian Gorsche ◽  
Bernhard Steyrer ◽  
Thomas Koch ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Propylene Oxide ◽  
Chain Transfer ◽  
Poly Propylene ◽  
Toughening Agent

Linking an addition–fragmentation-chain-transfer (AFCT) functionality and methacrylate moiety via poly(propylene oxide)-oligomer within one molecule creates a non-migrating AFCT-reagent aiding network-homogeneity.

Phenols and Carbon Compounds as Efficient Organic Catalysts for Reversible Chain Transfer Catalyzed Living Radical Polymerization (RTCP)

2010 ◽  
Vol 43 (19) ◽  
pp. 7971-7978 ◽  
Author(s):  
Atsushi Goto ◽  
Norihiro Hirai ◽  
Koji Nagasawa ◽  
Yoshinobu Tsujii ◽  
Takeshi Fukuda ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Chain Transfer ◽  
Living Radical Polymerization ◽  
Carbon Compounds ◽  
Reversible Chain Transfer ◽  
Organic Catalysts

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.

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