scholarly journals How Do Spherical Diblock Copolymer Nanoparticles Grow during RAFT Alcoholic Dispersion Polymerization?

2015 ◽  
Vol 49 (1) ◽  
pp. 172-181 ◽  
Author(s):  
E. R. Jones ◽  
O. O. Mykhaylyk ◽  
M. Semsarilar ◽  
M. Boerakker ◽  
P. Wyman ◽  
...  
2012 ◽  
Vol 45 (12) ◽  
pp. 5091-5098 ◽  
Author(s):  
Elizabeth R. Jones ◽  
Mona Semsarilar ◽  
Adam Blanazs ◽  
Steven P. Armes

2015 ◽  
Vol 6 (10) ◽  
pp. 1751-1757 ◽  
Author(s):  
Mona Semsarilar ◽  
Nicholas J. W. Penfold ◽  
Elizabeth R. Jones ◽  
Steven P. Armes

Semi-crystalline diblock copolymer spheres, worms or vesicles are prepared by polymerization-induced self-assembly via RAFT dispersion polymerization of stearyl methacrylate. DSC studies confirm local order for the core-forming poly(stearyl methacrylate) chains.


Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1284 ◽  
Author(s):  
Dongdong Liu ◽  
Ruiming Zeng ◽  
Hao Sun ◽  
Li Zhang ◽  
Jianbo Tan

Blue light-initiated alcoholic reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of benzyl methacrylate (BzMA) using bis (acyl) phosphane oxide (BAPO) as the photo-initiator is developed to prepare diblock copolymer nano-objects. High monomer conversion (95%) was achieved within 2 h of blue light irradiation in an isopropanol/water mixture. Effects of solvent, light intensity, and reaction temperature on the polymerization kinetics were evaluated. Finally, the effect of reaction temperature on the morphologies of diblock copolymer nano-objects was investigated and two morphological phase diagrams were constructed at 25 and 70 °C. Transmission electron microscopy (TEM) measurement confirmed that increasing the reaction temperature promoted the evolution of higher order morphology. We believe this study will provide more mechanistic insights into alcoholic RAFT dispersion polymerization for the creation of diblock copolymer nano-objects with well-defined structures.


2015 ◽  
Vol 6 (16) ◽  
pp. 3054-3062 ◽  
Author(s):  
Matthew J. Derry ◽  
Lee A. Fielding ◽  
Steven P. Armes

Diblock copolymer spheres, worms and vesicles are prepared via RAFT dispersion polymerization of benzyl methacrylate in either mineral oil or a poly(α-olefin) using polymerization-induced self-assembly; an efficient ‘one-pot’ protocol is reported for spheres at 30% solids in mineral oil.


2020 ◽  
Vol 11 (28) ◽  
pp. 4579-4590 ◽  
Author(s):  
Csilla György ◽  
Saul J. Hunter ◽  
Chloé Girou ◽  
Matthew J. Derry ◽  
Steven P. Armes

RAFT dispersion polymerization of 2-hydroxypropyl methacrylate produces diblock copolymer spheres, worms or vesicles in mineral oil; the Pickering emulsifier performance of the spheres is examined.


2019 ◽  
Vol 4 (5) ◽  
pp. 852-861 ◽  
Author(s):  
Sam Parkinson ◽  
Nicole S. Hondow ◽  
John S. Conteh ◽  
Richard A. Bourne ◽  
Nicholas J. Warren

A continuous-flow platform enables rapid kinetic profiling and accelerated production of block copolymer nano-objects via RAFT aqueous dispersion polymerization.


2015 ◽  
Vol 6 (41) ◽  
pp. 7264-7273 ◽  
Author(s):  
Kay E. B. Doncom ◽  
Nicholas J. Warren ◽  
Steven P. Armes

A zwitterionic polysulfobetaine-based macro-CTA is used for the synthesis of spheres, worms or vesiclesviaaqueous RAFT dispersion polymerization of 2-hydroxypropyl methacrylate (HPMA). These new diblock copolymer nano-objects exhibit high tolerance of added salt.


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