A surfactant-free emulsion RAFT polymerization of methyl methacrylate in a continuous tubular reactor

2015 ◽  
Vol 6 (11) ◽  
pp. 1937-1943 ◽  
Author(s):  
Zhen Li ◽  
Weijie Chen ◽  
Zhengbiao Zhang ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Mixed Solvent ◽  
Raft Polymerization ◽  
Tubular Reactor ◽  
Chain Transfer Agent ◽  
Dimethyl Formamide

A surfactant-free emulsion RAFT polymerization of methyl methacrylate was successfully conducted in a continuous tubular reactor with a mixed solvent of water and dimethyl formamide in the presence of air, using CTBCOOH as the chain transfer agent and emulsion stabilizer.

Facile prepared bis(carbazyl thiocarbonyl) disulfide as chain transfer agent for RAFT polymerization of methyl methacrylate

2012 ◽  
Vol 126 (2) ◽  
pp. 740-748 ◽  
Author(s):  
Bin Liu ◽  
Liandong Deng ◽  
Chungang Guo ◽  
Ruiwei Guo ◽  
Anjie Dong ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Chain Transfer Agent

Preparation of azobenzene-terminated polymers via reversible addition-fragmentation chain transfer (RAFT) polymerization

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Xiaoming Wan ◽  
Zhengbiao Zhang ◽  
Xiulin Zhu ◽  
Jian Zhu ◽  
Zhenping Cheng
Keyword(s):  
Methyl Methacrylate ◽  
Fluorescence Spectra ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Reversible Addition ◽  
Azobenzene Moiety

AbstractThree azobenzene-based dithiocarbamates, 2-(phenylazo-phenoxycarbonyl) prop-2-yl 9H-carbazole-9-carbodithioate (APCDT), 2-(4-nitro-phenylazophenoxy- carbonyl)prop-2-yl 9H-carbazole-9-carbodithioate (ANPCDT), 2-(4-cyanophenylazo- phenoxy-carbonyl)pro-2-yl 9H-carbazole-9-carbodithioate (ACPCDT), were synthesized and used as RAFT agents in the polymerizations of styrene (St) and methyl methacrylate (MMA). The results showed that APCDT, ACPCDT and ANPCDT were effective RAFT agents for the polymerization of St. In the case of MMA, the polymerization showed hybrid behavior. The different substitutes on azobenzene moiety in dithiocarbamates did not show obvious influence on the controllability of the polymerizations. The UV and fluorescence spectra of RAFT agents and obtained azobenzene-terminated polymers were investigated

Synthesis of Poly(β-cyclodextrin-maleic anhydride) Conjugated Magnetic Nanoparticles via RAFT Polymerization for Adsorption of Organic Compound

2014 ◽  
Vol 955-959 ◽  
pp. 149-153 ◽  
Author(s):  
Ming Ni ◽  
Yi Ming Cheng ◽  
Dong Jian Shi ◽  
Peng Yun Li ◽  
Ming Qing Chen
Keyword(s):  
Magnetic Nanoparticles ◽  
Water Treatment ◽  
Organic Compound ◽  
Maleic Anhydride ◽  
Methyl Methacrylate ◽  
Acid Chloride ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Adsorption Property ◽  
Xrd And Tem

In this paper, novel magnetic nanoparticles by initiating maleic anhydride-β-cyclodextrin (MAHCD) polymerization onto the surface of Fe3O4 nanoparticles were prepared. Firstly, MNPs were modified by silane couple agent, and then the modified MNPs reacted with 3-benzylsulfanyl thiocarbonyl sulfanyl propionic acid chloride to obtain RAFT chain transfer modified Fe3O4 nanoparticles. Then, maleic anhydride-β-cyclodextrin (MAHCD) was prepared by the reaction of maleic anhydride with β-cyclodextrin. Finally, MNP@P(MAHCD-co-MMA) nanoparticles were prepared using MAHCD and methyl methacrylate (MMA) as monomers and modified Fe3O4 nanoparticles as chain transfer agent by RAFT in the presence of initiator AIBN. The structure and size of the MNP@P(MAHCD-co-MMA) nanoparticles were confirmed by FTIR, TGA, XRD and TEM. The results showed that the MNP@P(MAHCD-co-MMA) nanoparticles about 200 nm were successfully prepared. Moreover, the MNP@P(MAHCD-co-MMA) nanoparticles showed well adsorption property using hydroxylbenzoic acid as the guest compound. Therefore, the MNP@P(MAHCD-co-MMA) nanoparticles have the capability to adsorb suitable guest compounds, and could be used for water treatment.

scholarly journals Influence of structure and solubility of chain transfer agents on the RAFT control of dispersion polymerisation in scCO2

2021 ◽  
Author(s):  
Ana A. C. Pacheco ◽  
Arnaldo F. da Silva Filho ◽  
Kristoffer Kortsen ◽  
Magnus W. D. Hanson-Heine ◽  
Vincenzo Taresco ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Good Control ◽  
Chain Transfer Agent ◽  
Methylpropionic Acid ◽  
Transfer Agents

RAFT dispersion polymerisation of methyl methacrylate is performed in scCO2 with 2-(dodecylthiocarbonothioylthio)-2-methylpropionic acid (DDMAT) present as chain transfer agent (CTA) and surprisingly shows good control over PMMA molecular weight.

Initiator-chain transfer agent combo in the RAFT polymerization of styrene

2014 ◽  
Vol 50 (68) ◽  
pp. 9722-9724 ◽  
Author(s):  
Ying Wu ◽  
Wei Zhang ◽  
Zhengbiao Zhang ◽  
Xiangqiang Pan ◽  
Zhenping Cheng ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Raft Polymerization ◽  
Chain Transfer Agent ◽  
Vinyl Monomers

A novel initiator-chain transfer agent combo was synthesized and applied in the homopolymerization of different vinyl monomers as well as copolymerization.

Sign in / Sign up

Export Citation Format

Share Document