Results 261 to 270 of about 78,340 (285)

“Self-regulation” of controlled radical polymerization

Acta Polymerica, 1998
The number of stable free radicals in solution usually increases in a controlled radical polymerization due to irreversible side reactions of free polymer-radicals. In our approach, this increase is, depending on the amount of side reactions, prevented by slow decomposition of the counter radical and by simultaneous formation of new initiating species.
Steenbock, M., Klapper, M., Müllen, K.
openaire   +2 more sources

Bacterial Redox Potential Powers Controlled Radical Polymerization

Journal of the American Chemical Society, 2020
Microbes employ a remarkably intricate electron transport system to extract energy from the environment. The respiratory cascade of bacteria culminates in the terminal transfer of electrons onto higher redox potential acceptors in the extracellular space.
Mitchell D. Nothling, Hanwei Cao, Thomas G. McKenzie, Dianna M. Hocking, Richard A. Strugnell, Greg G. Qiao   +5 more
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‘Living’ and controlled radical polymerization

Journal of Physical Organic Chemistry, 1995
AbstractRadical polymerizations cannot truly be ‘living’ because of the inevitable termination between growing radicals. However, relatively good control of molecular weights, polydispersities and terminal functionalities can be achieved by using either unimolecular or bimolecular exchange between growing radicals and dormant chains. The dormant chains
Krzysztof Matyjaszewski, Scott Gaynor, Dorota Greszta, Daniela Mardare, Takeo Shigemoto   +4 more
openaire   +1 more source

Organocatalyzed Controlled Radical Polymerizations

2018
Radical polymerizations are responsible for a significant amount of the World's total polymer production. Free-radical polymerization provides a relatively inexpensive and facile route to produce bulk plastic products, however, it fails in the synthesis of precisely defined macromolecules.
Matthew D. Ryan, Ryan M. Pearson, Garret M. Miyake   +2 more
openaire   +1 more source

Benzotriazinyl‐mediated controlled radical polymerization of styrene

Polymer International, 2013
Abstract The stable free radical polymerization ( SFRP ) process based on (1,3‐diphenyl‐1,4‐dihydro‐1,2,4‐benzotriazin‐4‐yl), the so‐called ‘Blatter radical’, and several C‐7 substituted derivatives is introduced for the first time for the ...
Demetriou, M., Berezin, A. A., Koutentis, P. A., Krasia-Christoforou, T., Demetriou, M., Berezin, A. A., Koutentis, P. A., Krasia-Christoforou, T.   +7 more
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Novel Brush Copolymers via Controlled Radical Polymerization

Macromolecular Chemistry and Physics, 2004
AbstractSummary: A combination of reversible addition‐fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP) techniques were applied for the synthesis of novel polymer brushes by using the “grafting from” approach or a combination of “grafting through” and “grafting from” methods.
Venkatesh, R., Yajjou, L., Koning, C.E., Klumperman, B.   +3 more
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Controlled Radical Polymerization: Mechanisms

2015
This book and the following volume (1188: Controlled Radical Polymerization: Materials) are addressed to chemists and polymer scientists interested in radical processes, and especially in controlled/living radical polymerization. The chapters in this first volume summarize the most recent advances in the field, including mechanistic, materials, and ...
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Controlled/Living Radical Polymerization in Dispersed Systems

Chemical Reviews, 2008
2.6. Microemulsion Polymerization 3778 2.6.1. General Considerations 3778 2.6.2. Microemulsion NMP 3778 2.6.3. Microemulsion ATRP 3778 2.6.4. Microemulsion RAFT Polymerization 3779 2.6.5. ITP in Microemulsion 3779 2.7. Dispersion and Precipitation Polymerizations 3779 2.7.1. General Considerations 3779 2.7.2. NMP 3780 2.7.3. ATRP 3781 2.7.4.
Per B, Zetterlund, Yasuyuki, Kagawa, Masayoshi, Okubo   +2 more
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Microwave-Assisted Controlled Radical Polymerization

2014
Use of microwave energy to heat and drive chemical reactions has been an increasingly popular theme in the scientific community. Historically, since the 1950s microwave energy has become an essential part of many technical applications in chemical and related industries, particularly in organic chemistry.
Stéphanie Reynaud, Bruno Grassl
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Microwave-assisted controlled radical polymerizations

Polymer Preprints, 2005
No abstract.
Hoogenboom, R., Wiesbrock, F.D., Leenen, M.A.M., Zhang, Huiqi, Schubert, U.S.   +4 more
openaire   +2 more sources