A Facile Route to Functional Hyperbranched Polymers by Combining Reversible Addition–Fragmentation Chain Transfer Polymerization, Thiol–Yne Chemistry, and Postpolymerization Modification Strategies

2013 ◽  
Vol 2 (5) ◽  
pp. 366-370 ◽  
Author(s):  
Raphael Barbey ◽  
Sébastien Perrier
Keyword(s):  
Chain Transfer ◽  
Hyperbranched Polymers ◽  
Reversible Addition ◽  
Chain Transfer Polymerization ◽  
Facile Route

Synthesis, Dye Encapsulation, and Highly Efficient Colouring Application of Amphiphilic Hyperbranched Polymers

2014 ◽  
Vol 67 (1) ◽  
pp. 103 ◽  
Author(s):  
Zhulin Weng ◽  
Yaochen Zheng ◽  
Aijin Tang ◽  
Chao Gao
Keyword(s):  
Quaternary Ammonium ◽  
Hyperbranched Polymer ◽  
Chain Transfer ◽  
Click Reaction ◽  
Hyperbranched Polymers ◽  
Dye Molecules ◽  
Highly Efficient ◽  
Hyperbranched Poly ◽  
Reversible Addition ◽  
Chain Transfer Polymerization

A novel kind of amphiphilic hyperbranched polymer (AHP), poly(2-(dimethylamino)ethyl methacrylate)-co-polystyrene (HPTAM-co-PS), was synthesized via the combination of reversible addition–fragmentation chain-transfer polymerization and self-condensing vinyl polymerization (RAFT-SCVP). HPTAM-co-PS was functionalized via the highly efficient Menschutkin click reaction, resulting in hyperbranched poly(propargyl quaternary ammonium methacrylate)-co-polystyrene (HPPrAM-co-PS) with a hydrophilic quaternary ammonium salt core and hydrophobic PS shell. The average numbers of dye molecules trapped by each molecule of HPPrAM-co-PS (24.2 kDa) were 24.1 for methyl orange (MO), 22.0 for fluorescein sodium (FS), 24.2 for rose bengal (RB), and 238.4 for Congo red (CR). The polymer–dye complexes show excellent colouring effects for both PS and poly(styrene-b-butadiene-b-styrene) (SBS) membranes; the colour of the membrane containing AHP is very stable and uniform. Our work opens an avenue for the design of efficient dye-colouring additives and for the application of hyperbranched polymers in the field of polymer colouring.

scholarly journals Synthesis of aminated polystyrene and its self-assembly with nanoparticles at oil/water interface

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 317-327
Author(s):  
Chenliang Shi ◽  
Ling Lin ◽  
Yukun Yang ◽  
Wenjia Luo ◽  
Maoqing Deng ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Self Assembly ◽  
Carbon Dots ◽  
Chain Transfer ◽  
Functionalized Polymers ◽  
Amino Groups ◽  
One Dimensional ◽  
Reversible Addition ◽  
Oil Water ◽  
Chain Transfer Polymerization

AbstractThe influence of density of amino groups, nanoparticles dimension and pH on the interaction between end-functionalized polymers and nanoparticles was extensively investigated in this study. PS–NH2 and H2N–PS–NH2 were prepared using reversible addition–fragmentation chain transfer polymerization and atom transfer radical polymerization. Zero-dimensional carbon dots with sulfonate groups, one-dimensional cellulose nanocrystals with sulfate groups and two-dimensional graphene with sulfonate groups in the aqueous phase were added into the toluene phase containing the aminated PS. The results indicate that aminated PS exhibited the strongest interfacial activity after compounding with sulfonated nanoparticles at a pH of 3. PS ended with two amino groups performed better in reducing the water/toluene interfacial tension than PS ended with only one amino group. The dimension of sulfonated nanoparticles also contributed significantly to the reduction in the water/toluene interfacial tension. The minimal interfacial tension was 4.49 mN/m after compounding PS–NH2 with sulfonated zero-dimensional carbon dots.

Well-Defined Vinyl Ketone-Based Polymers by Reversible Addition−Fragmentation Chain Transfer Polymerization

2007 ◽  
Vol 129 (33) ◽  
pp. 10086-10087 ◽  
Author(s):  
Chong Cheng ◽  
Guorong Sun ◽  
Ezat Khoshdel ◽  
Karen L. Wooley
Keyword(s):  
Chain Transfer ◽  
Vinyl Ketone ◽  
Reversible Addition ◽  
Chain Transfer Polymerization

Star-polymer synthesis via radical reversible addition-fragmentation chain-transfer polymerization

2001 ◽  
Vol 39 (16) ◽  
pp. 2777-2783 ◽  
Author(s):  
Martina Stenzel-Rosenbaum ◽  
Thomas P. Davis ◽  
Vicki Chen ◽  
Anthony G. Fane
Keyword(s):  
Chain Transfer ◽  
Polymer Synthesis ◽  
Star Polymer ◽  
Reversible Addition ◽  
Chain Transfer Polymerization
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