scholarly journals The preparation of graft copolymers of cellulose and cellulose derivatives using ATRP under homogeneous reaction conditions

2014 ◽  
Vol 43 (20) ◽  
pp. 7217-7235 ◽  
Author(s):  
Fanny Joubert ◽  
Osama M. Musa ◽  
David R. W. Hodgson ◽  
Neil R. Cameron
Keyword(s):  
Drug Delivery ◽  
Graft Copolymers ◽  
Cellulose Derivatives ◽  
Atom Transfer ◽  
Homogeneous Reaction ◽  
Reaction Conditions ◽  
Novel Materials ◽  
Radical Polymerisation

Atom transfer radical polymerisation (ATRP) is used to modify cellulose and cellulose derivatives under homogeneous conditions, yielding novel materials for application in areas such as drug delivery.

Direct Cyclization of Alkenyl Thioester via Transition Metal‐hydrogen Atom Transfer/radical‐polar Crossover Mechanism

2019 ◽  
Author(s):  
Shiori Date ◽  
Kensei Hamasaki ◽  
Karen Sunagawa ◽  
Hiroki Koyama ◽  
Chikayoshi Sebe ◽  
...  
Keyword(s):  
Natural Products ◽  
Hydrogen Atom ◽  
Transition Metal ◽  
Hydrogen Atom Transfer ◽  
Synthetic Method ◽  
Atom Transfer ◽  
Reaction Conditions ◽  
Hydride Hydrogen ◽  
Sulfur Heterocycles ◽  
One Step

<div>We report here a catalytic, Markovnikov selective, and scalable synthetic method for the synthesis of saturated sulfur heterocycles, which are found in the structures of pharmaceuticals and natural products, in one step from an alkenyl thioester. Unlike a potentially labile alkenyl thiol, an alkenyl thioester is stable and easy to prepare. The powerful Co catalysis via a cobalt hydride hydrogen atom transfer and radical-polar crossover mechanism enabled simultaneous cyclization and deprotection. The substrate scope was expanded by the extensive optimization of the reaction conditions and tuning of the thioester unit.</div>

scholarly journals Plug-and-play aqueous electrochemical atom transfer radical polymerization

2021 ◽  
Vol 57 (32) ◽  
pp. 3897-3900
Author(s):  
Boyu Zhao ◽  
Mahir Mohammed ◽  
Bryn A. Jones ◽  
Paul Wilson
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Good Control ◽  
Atom Transfer ◽  
Plug And Play ◽  
Radical Polymerisation ◽  
Galvanostatic Conditions

‘Plug-and-play’ simplified electrochemical atom transfer radical polymerisation of PEGA480 under potentiostatic and galvanostatic conditions proceeds with very good control to conversions up to 83%.

Synthesis and properties of semifluorinated block copolymers containing poly(ethylene oxide) and poly(fluorooctyl methacrylates) via atom transfer radical polymerisation

Polymer ◽  
2002 ◽  
Vol 43 (25) ◽  
pp. 7043-7049 ◽  
Author(s):  
Kwon Taek Lim ◽  
Min Young Lee ◽  
Myung Jun Moon ◽  
Gun Dae Lee ◽  
Seong-Soo Hong ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Atom Transfer ◽  
Radical Polymerisation ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Poly(3-hydroxybutyrate-co-ɛ-caprolactone) copolymers and poly(3-hydroxybutyrate-co-3-hydroxyvalerate-co-ɛ-caprolactone) terpolymers as novel materials for colloidal drug delivery systems

2009 ◽  
Vol 37 (3-4) ◽  
pp. 451-462 ◽  
Author(s):  
Rosario Pignatello ◽  
Teresa Musumeci ◽  
Giuseppe Impallomeni ◽  
Giovanni Marco Carnemolla ◽  
Giovanni Puglisi ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Novel Materials
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