Importance of Nucleophilicity of Chain-Transfer Agents for Controlled Cationic Degenerative Chain-Transfer Polymerization

2020 ◽  
Vol 53 (11) ◽  
pp. 4303-4311 ◽  
Author(s):  
Parker Thomas Boeck ◽  
Joji Tanaka ◽  
Shubin Liu ◽  
Wei You
Keyword(s):  
Chain Transfer ◽  
Chain Transfer Polymerization ◽  
Degenerative Chain Transfer ◽  
Transfer Agents

Peculiar Behavior of Degenerative Chain Transfer Polymerization of a Phosphonated Methacrylate

2009 ◽  
Vol 210 (8) ◽  
pp. 631-639 ◽  
Author(s):  
Ghislain David ◽  
Zhor El Asri ◽  
Samantha Rich ◽  
Patrice Castignolles ◽  
Yohann Guillaneuf ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Chain Transfer Polymerization ◽  
Peculiar Behavior ◽  
Degenerative Chain Transfer

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.

Sign in / Sign up

Export Citation Format

Share Document