scholarly journals Designed enzymatically degradable amphiphilic conetworks by radical ring-opening polymerization

2015 ◽  
Vol 6 (35) ◽  
pp. 6409-6415 ◽  
Author(s):  
Yinfeng Shi ◽  
Holger Schmalz ◽  
Seema Agarwal
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring ◽  
Cyclopropane Derivative ◽  
Swelling Property ◽  
Ketene Acetal ◽  
Enzymatic Degradability

A simple and versatile route for making functional biodegradable amphiphilic conetworks (APCNs) with unique swelling property and excellent enzymatic degradability is presented. The APCNs were made by radical ring-opening copolymerization of cyclic ketene acetal and vinyl cyclopropane derivative.

TiCp2Cl-Catalyzed Living Radical and Ring Opening Polymerizations Initiated from Epoxides and Aldehydes in the Synthesis of Linear, Graft and Branched Polymers

2004 ◽  
Vol 856 ◽  
Author(s):  
Alexandru D. Asandei ◽  
Isaac W. Moran ◽  
Gobinda Saha ◽  
Yanhui Chen
Keyword(s):  
Electron Transfer ◽  
Ring Opening ◽  
Glycidyl Methacrylate ◽  
Ring Opening Polymerization ◽  
Branched Polymers ◽  
Single Electron Transfer ◽  
Radical Ring ◽  
Polymer Architectures ◽  
Complex Polymer

ABSTRACTTi(III)Cp2Cl-catalyzed radical ring opening (RRO) of epoxides or single electron transfer (SET) reduction of aldehydes generates Ti alkoxides and carbon centered radicals which add to styrene, initiating a radical polymerization. This polymerization is mediate in a living fashion by the reversible termination of growing chains with the TiCp2Cl metalloradical. In addition, polymers or monomers containing pendant epoxide groups (glycidyl methacrylate) can be used as substrates for radical grafting or branching reactions by self condensing vinyl polymerization. In addition, Ti alkoxides generated in situ by both epoxide RRO and aldehyde SET initiate the living ring opening polymerization of ε-caprolactone. Thus, new initiators and catalysts are introduced for the synthesis of complex polymer architectures.

Scope and limitations of the nitroxide-mediated radical ring-opening polymerization of cyclic ketene acetals

2013 ◽  
Vol 4 (17) ◽  
pp. 4776 ◽  
Author(s):  
Antoine Tardy ◽  
Vianney Delplace ◽  
Didier Siri ◽  
Catherine Lefay ◽  
Simon Harrisson ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring ◽  
Cyclic Ketene Acetals ◽  
Ketene Acetals

Copper-mediated controlled radical ring-opening polymerization (RROP) of a vinylcycloalkane

2008 ◽  
pp. 3049 ◽  
Author(s):  
Nikhil Kumar Singha ◽  
Amalin Kavitha ◽  
Prodip Sarker ◽  
Stephen Rimmer
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring

Free-radical ring-opening polymerization of 2-(o-chlorophenyl)-4-methylene-1,3-dioxolane

1993 ◽  
Vol 30 (1) ◽  
pp. 7-12 ◽  
Author(s):  
Simona Morariu ◽  
Emil C. Buruiana ◽  
Bogdan C. Simionescu
Keyword(s):  
Free Radical ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring

Free-Radical Ring-Opening Polymerization of Cyclic Allylic Sulfides

1996 ◽  
Vol 29 (22) ◽  
pp. 6983-6989 ◽  
Author(s):  
Richard A. Evans ◽  
Ezio Rizzardo
Keyword(s):  
Free Radical ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring
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