scholarly journals Aminooxy and Pyridyl Disulfide Telechelic Poly(poly(ethylene glycol) acrylate) by RAFT Polymerization

2012 ◽  
Vol 45 (12) ◽  
pp. 4958-4965 ◽  
Author(s):  
Gregory N. Grover ◽  
Juneyoung Lee ◽  
Nicholas M. Matsumoto ◽  
Heather D. Maynard
Keyword(s):  
Ethylene Glycol ◽  
Raft Polymerization ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

scholarly journals Comparing Zwitterionic and PEG Exteriors of Polyelectrolyte Complex Micelles

Molecules ◽  
2020 ◽  
Vol 25 (11) ◽  
pp. 2553
Author(s):  
Jeffrey M. Ting ◽  
Alexander E. Marras ◽  
Joseph D. Mitchell ◽  
Trinity R. Campagna ◽  
Matthew V. Tirrell
Keyword(s):  
Ethylene Glycol ◽  
Polyelectrolyte Complex ◽  
Serum Proteins ◽  
Raft Polymerization ◽  
Sodium Acrylate ◽  
Structure Property ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Complex Micelles

A series of model polyelectrolyte complex micelles (PCMs) was prepared to investigate the consequences of neutral and zwitterionic chemistries and distinct charged cores on the size and stability of nanocarriers. Using aqueous reversible addition-fragmentation chain transfer (RAFT) polymerization, we synthesized a well-defined diblock polyelectrolyte system, poly(2-methacryloyloxyethyl phosphorylcholine methacrylate)-block-poly((vinylbenzyl) trimethylammonium) (PMPC-PVBTMA), at various neutral and charged block lengths to compare directly against PCM structure–property relationships centered on poly(ethylene glycol)-block-poly((vinylbenzyl) trimethylammonium) (PEG-PVBTMA) and poly(ethylene glycol)-block-poly(l-lysine) (PEG-PLK). After complexation with a common polyanion, poly(sodium acrylate), the resulting PCMs were characterized by dynamic light scattering (DLS) and small angle X-ray scattering (SAXS). We observed uniform assemblies of spherical micelles with a diameter ~1.5–2× larger when PMPC-PVBTMA was used compared to PEG-PLK and PEG-PVBTMA via SAXS and DLS. In addition, PEG-PLK PCMs proved most resistant to dissolution by both monovalent and divalent salt, followed by PEG-PVBTMA then PMPC-PVBTMA. All micelle systems were serum stable in 100% fetal bovine serum over the course of 8 h by time-resolved DLS, demonstrating minimal interactions with serum proteins and potential as in vivo drug delivery vehicles. This thorough study of the synthesis, assembly, and characterization of zwitterionic polymers in PCMs advances the design space for charge-driven micelle assemblies.

Poly(ethylene glycol) as a ‘green solvent’ for the RAFT polymerization of methyl methacrylate

Polymer ◽  
2010 ◽  
Vol 51 (17) ◽  
pp. 3836-3842 ◽  
Author(s):  
Andrew G. West ◽  
Christopher Barner-Kowollik ◽  
Sébastien Perrier
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Raft Polymerization ◽  
Green Solvent ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Fluorinated amphiphilic block copolymers via RAFT polymerization and their application as surf-RAFT agent in miniemulsion polymerization

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15461-15468 ◽  
Author(s):  
Bishnu P. Koiry ◽  
Arindam Chakrabarty ◽  
Nikhil K. Singha
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Ethylene Glycol ◽  
Raft Polymerization ◽  
Miniemulsion Polymerization ◽  
Amphiphilic Block Copolymers ◽  
Poly Ethylene Glycol ◽  
Raft Agent ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Preparation of an amphiphilic block copolymer (Am-BCP) based on poly(ethylene glycol) methyl ether methacrylate (PEGMA) and heptafluorobutyl acrylate (HFBA) via RAFT polymerization and application of this Am-BCP as surf-RAFT agent for polymerization of styrene.

Poly(ethylene glycol)-based amphiphilic model conetworks: Synthesis by RAFT polymerization and characterization

2008 ◽  
Vol 46 (22) ◽  
pp. 7556-7565 ◽  
Author(s):  
Mariliz Achilleos ◽  
Thomas M. Legge ◽  
Sébastien Perrier ◽  
Costas S. Patrickios
Keyword(s):  
Ethylene Glycol ◽  
Raft Polymerization ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Poly(ethylene glycol) (PEG)-crosslinked poly(vinyl pyridine)–PEG–poly(vinyl pyridine)-based triblock copolymers prepared by RAFT polymerization as novel gel polymer electrolytes

2018 ◽  
Vol 9 (42) ◽  
pp. 5190-5199 ◽  
Author(s):  
Inseop Shin ◽  
Jaebin Nam ◽  
Kukjoo Lee ◽  
Eunsoo Kim ◽  
Tae-Hyun Kim
Keyword(s):  
Ethylene Glycol ◽  
Polymer Electrolytes ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Gel Polymer Electrolytes ◽  
Poly Ethylene Glycol ◽  
Vinyl Pyridine ◽  
Poly Ethylene

A series of triblock copolymers based on poly(vinyl pyridine)–PEG–poly(vinyl pyridine) (PVP–PEG–PVP) with different PEG-to-PVP ratios (1 : 200, 1 : 250, and 1 : 500) were prepared using the RAFT polymerization.

scholarly journals Chemical Synthesis and Characterization of Poly(poly(ethylene glycol) methacrylate)-Grafted CdTe Nanocrystals via RAFT Polymerization for Covalent Immobilization of Adenosine

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 77 ◽  
Author(s):  
Trinh Duy Nguyen ◽  
Hieu Vu-Quang ◽  
Thanh Sang Vo ◽  
Duy Chinh Nguyen ◽  
Dai-Viet N. Vo ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Photoelectron Spectroscopy ◽  
Raft Polymerization ◽  
Condensation Reaction ◽  
Covalent Bond ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
Glycol Methacrylate ◽  
Cdte Qds ◽  
Poly Ethylene

This paper describes the functionalization of poly(poly(ethylene glycol) methacrylate) (PPEGMA)-grafted CdTe (PPEGMA-g-CdTe) quantum dots (QDs) via surface-initiated reversible addition–fragmentation chain transfer (SI-RAFT) polymerization for immobilization of adenosine. Initially, the hydroxyl-coated CdTe QDs, synthesized using 2-mercaptoethanol (ME) as a capping agent, were coupled with a RAFT agent, S-benzyl S′-trimethoxysilylpropyltrithiocarbonate (BTPT), through a condensation reaction. Then, 2,2′-azobisisobutyronitrile (AIBN) was used to successfully initiate in situ RAFT polymerization to generate PPEGMA-g-CdTe nanocomposites. Adenosine-above-PPEGMA-grafted CdTe (Ado-i-PPEGMA-g-CdTe) hybrids were formed by the polymer shell, which had successfully undergone bioconjugation and postfunctionalization by adenosine (as a nucleoside). Fourier transform infrared (FT-IR) spectrophotometry, energy-dispersive X-ray (EDX) spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy results indicated that a robust covalent bond was created between the organic PPEGMA part, cadmium telluride (CdTe) QDs, and the adenosine conjugate. The optical properties of the PPEGMA-g-CdTe and Ado-i-PPEGMA-g-CdTe hybrids were investigated by photoluminescence (PL) spectroscopy, and the results suggest that they have a great potential for application as optimal materials in biomedicine.

RAFT Polymerization in a Miniemulsion System Using a Novel Type of Amphiphilic RAFT Agent with Poly(ethylene glycol) Bound to a Dithiobenzoate Group

2013 ◽  
Vol 47 (1) ◽  
pp. 130-136 ◽  
Author(s):  
Hideto Minami ◽  
Kengo Shimomura ◽  
Toyoko Suzuki ◽  
Keiichi Sakashita ◽  
Tetsuya Noda
Keyword(s):  
Ethylene Glycol ◽  
Raft Polymerization ◽  
Poly Ethylene Glycol ◽  
Raft Agent ◽  
Poly Ethylene

The in situ formation of nanoparticles via RAFT polymerization-induced self-assembly in a continuous tubular reactor

2017 ◽  
Vol 8 (9) ◽  
pp. 1495-1506 ◽  
Author(s):  
Jinying Peng ◽  
Chun Tian ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
Xiulin Zhu
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Tubular Reactor ◽  
Poly Ethylene Glycol ◽  
In Situ Formation ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Amphiphilic poly(poly(ethylene glycol)methyl ether methacrylate)-b-poly(methyl methacrylate) (PPEGMA-b-PMMA) diblock copolymer nanoparticles were successfully synthesized via polymerization-induced self-assembly (PISA) at 70 °C in a continuous tubular reactor.

In situ synthesis of a self-assembled AB/B blend of poly(ethylene glycol)-b-polystyrene/polystyrene by dispersion RAFT polymerization

2017 ◽  
Vol 8 (14) ◽  
pp. 2173-2181 ◽  
Author(s):  
Bing Yuan ◽  
Xin He ◽  
Yaqing Qu ◽  
Chengqiang Gao ◽  
Erika Eiser ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Raft Polymerization ◽  
In Situ Synthesis ◽  
Poly Ethylene Glycol ◽  
Self Assembled ◽  
Poly Ethylene

A diblock-copolymer/homopolymer self-assembled blend was synthesized through dispersion RAFT polymerization, and its morphology changed with a decreasing ratio of diblock-copolymer/homopolymer.

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