scholarly journals Analysis of the Phase Separation Induced by a Free-Radical Polymerization in Solutions of Polyisobutylene in Isobornyl Methacrylate

2007 ◽  
Vol 46 (23) ◽  
pp. 7535-7542 ◽  
Author(s):  
Ezequiel R. Soulé, ◽  
Guillermo E. Eliçabe ◽  
Julio Borrajo ◽  
Roberto J. J. Williams
Keyword(s):  
Phase Separation ◽  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization

scholarly journals The Influence of Synthesis Method on Characteristics of Buffer and Organic Solutions of Thermo- and pH-Responsive Poly(N-[3-(diethylamino)propyl]methacrylamide)s

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 282
Author(s):  
Maria Simonova ◽  
Denis Kamorin ◽  
Anton Sadikov ◽  
Alexander Filippov ◽  
Oleg Kazantsev
Keyword(s):  
Phase Separation ◽  
Free Radical ◽  
Radical Polymerization ◽  
Raft Polymerization ◽  
Synthesis Method ◽  
Free Radical Polymerization ◽  
Ph Responsive ◽  
Buffer Solutions ◽  
Ph Range ◽  
Organic Solutions

Thermo- and pH-responsive poly(N-[3-(diethylamino)propyl]methacrylamide)s were synthesized by free radical polymerization and RAFT polymerization. The molar masses of the samples were 33,000–35,000 g∙mol−1. Investigations of the dilute solutions showed that the prepared samples were flexible chain polymers. The behavior of the synthesized polymers in the buffer solutions was analyzed by turbidity and light scattering at a pH range of 7–13 and a concentration range of 0.0002–0.008 g·cm−3. When the concentrated solutions were at a low temperature, there were macromolecules and aggregates, which were formed due to the interaction of hydrophobic units. For the investigated samples, the lower critical solution temperatures were equal. The phase separation temperatures decreased as pH increased. The influence of polydispersity index on the characteristics of the samples in the solutions was analyzed. The radii of molecules of poly(N-[3-(diethylamino)propyl]methacrylamide) obtained by RAFT polymerization at this temperature at the onset and end of the phase separation interval were lower than ones for samples synthesized by conventional free radical polymerization.

Non-isothermal Kinetics of Free Radical Polymerization of 2-Phenylethyl (Meth)acrylate

2018 ◽  
Vol 8 (3) ◽  
pp. 585-594
Author(s):  
Khdbudin Mulani ◽  
Ravindra Ghorpade ◽  
Surendra Ponrathnam ◽  
Nayaku Chavan ◽  
Kamini Donde
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Isothermal Kinetics ◽  
Kinetics Of

Oxygen-Initiated Free-Radical Polymerization of Alkyl Acrylates at High Temperatures

2021 ◽  
Author(s):  
Shi Liu ◽  
Lauren Chua ◽  
Ahmad Arabi Shamsabadi ◽  
Patrick Corcoran ◽  
Abhirup Patra ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
High Temperatures ◽  
Free Radical Polymerization ◽  
Alkyl Acrylates

Development of Novel Colorimetric Thermometer Based on Poly(N-vinylcaprolactam) with Push-π-Pull Tricyanofuran Hydrazone Anion Dye

2021 ◽  
Author(s):  
Meram S Abdelrahman ◽  
Tawfik A Khattab ◽  
Samir Kamel
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization

Thermochromic poly(N-vinylcaprolactam-co-tricyanofuran hydrazone) [Poly(VC-co-TCFH)] gel labeled with halochromic chromophore was developed using traditional free radical polymerization. Novel vinyl-containing tricyanofuran hydrazone (TCFH) halochromic chromophore bearing a hydrazone sensor group was generated...

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