Synthesis of Functionalized Monodisperse Poly(methyl methacrylate) Nanoparticles by a RAFT Agent Carrying Carboxyl End Group

2004 ◽  
Vol 37 (15) ◽  
pp. 5565-5571 ◽  
Author(s):  
Sang Eun Shim ◽  
Huije Lee ◽  
Soonja Choe
Keyword(s):  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
Raft Agent ◽  
End Group

scholarly journals Thermolysis of RAFT-Synthesized Poly(Methyl Methacrylate)

2006 ◽  
Vol 59 (10) ◽  
pp. 755 ◽  
Author(s):  
Bill Chong ◽  
Graeme Moad ◽  
Ezio Rizzardo ◽  
Melissa Skidmore ◽  
San H. Thang
Keyword(s):  
Weight Loss ◽  
Methyl Methacrylate ◽  
1H Nmr Spectroscopy ◽  
Gel Permeation Chromatography ◽  
Dominant Mechanism ◽  
Elimination Process ◽  
Poly Methyl Methacrylate ◽  
Gel Permeation ◽  
Raft Agent ◽  
End Group

Thermolysis provides a simple and efficient way of eliminating thiocarbonylthio groups from RAFT-synthesized polymers. The course of thermolysis of poly(methyl methacrylate) (PMMA) prepared with dithiobenzoate and trithiocarbonate RAFT agents was followed by thermogravimetric analysis (TGA), 1H NMR spectroscopy, and gel permeation chromatography (GPC). The weight loss profile observed depends strongly on the RAFT agent used during polymer synthesis. PMMA with a methyl trithiocarbonate end group undergoes loss of that end group at ~180°C, at least in part, by a mechanism believed to involve homolysis of the C–CS2SCH3 bond and subsequent depropagation. In contrast, PMMA with a dithiobenzoate end appears more stable. Only the end group is lost at ~180°C and the dominant mechanism is proposed to be a concerted elimination process analogous to that involved in the Chugaev reaction.

End-Group Analysis of Poly(methyl methacrylate) Prepared with Benzoyl Peroxide by 750 MHz High-Resolution1H NMR Spectroscopy

1997 ◽  
Vol 30 (22) ◽  
pp. 6754-6759 ◽  
Author(s):  
Koichi Hatada ◽  
Tatsuki Kitayama ◽  
Koichi Ute ◽  
Yoshio Terawaki ◽  
Takatsune Yanagida
Keyword(s):  
Nmr Spectroscopy ◽  
Methyl Methacrylate ◽  
Benzoyl Peroxide ◽  
Group Analysis ◽  
Poly Methyl Methacrylate ◽  
End Group

Synthesis of ω-End Group Functionalized Poly(methyl methacrylate)s via RAFT Polymerization

2010 ◽  
Vol 43 (18) ◽  
pp. 7453-7464 ◽  
Author(s):  
Barbara Sasso ◽  
Martyn Dobinson ◽  
Philip Hodge ◽  
Trevor Wear
Keyword(s):  
Methyl Methacrylate ◽  
Raft Polymerization ◽  
Poly Methyl Methacrylate ◽  
End Group

scholarly journals The thermal stability of poly(methyl methacrylate) prepared by raft polymerisation

2008 ◽  
Vol 73 (8-9) ◽  
pp. 915-921 ◽  
Author(s):  
Lynne Katsikas ◽  
Milena Avramovic ◽  
Betancourt Cortés ◽  
Milos Milovanovic ◽  
Melina Kalagasidis-Krusic ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Double Bonds ◽  
Poly Methyl Methacrylate ◽  
Reversible Addition ◽  
Raft Agent ◽  
Thermal Stability Of

Poly(methyl methacrylate), PMMA, was prepared by reversible addition-fragmentation chain transfer, RAFT, polymerisation using 2-(2-cyanopropyl)-dithiobenzoate, CPDB, as the RAFT agent. The thermal stability of the resulting polymer approached that of anionically prepared PMMA, as determined by thermogravimetry. This was the consequence of the RAFT prepared polymer having no head-to-head links and no chain end double bonds, which are responsible for the relatively low thermal stability of radically prepared PMMA.

UV-Triggered End Group Conversion of Photo-Initiated Poly(methyl methacrylate)

2012 ◽  
Vol 45 (15) ◽  
pp. 5850-5858 ◽  
Author(s):  
Dominik Voll ◽  
Dmytro Neshchadin ◽  
Kai Hiltebrandt ◽  
Georg Gescheidt ◽  
Christopher Barner-Kowollik
Keyword(s):  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
End Group

Thermal stability of RAFT-based poly(methyl methacrylate): A kinetic study of the dithiobenzoate and trithiocarbonate end-group effect

2019 ◽  
Vol 164 ◽  
pp. 18-27 ◽  
Author(s):  
Marianna Z. Bekanova ◽  
Nikolay K. Neumolotov ◽  
Anastasija D. Jablanović ◽  
Anna V. Plutalova ◽  
Elena V. Chernikova ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Methyl Methacrylate ◽  
Kinetic Study ◽  
Group Effect ◽  
Poly Methyl Methacrylate ◽  
Thermal Stability Of ◽  
End Group
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