scholarly journals Facile preparation of hybrid vesicles loaded with silica nanoparticles via aqueous photoinitiated polymerization-induced self-assembly

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 23114-23121 ◽  
Author(s):  
Jianbo Tan ◽  
Dongdong Liu ◽  
Xuechao Zhang ◽  
Chundong Huang ◽  
Jun He ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Silica Nanoparticles ◽  
Methyl Ether ◽  
Self Assembly ◽  
Dispersion Polymerization ◽  
Chain Transfer ◽  
Poly Ethylene Glycol ◽  
Facile Preparation ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

We report a photoinitiated dispersion polymerization of 2-hydroxypropyl methacrylate (HPMA) in the presence of silica nanoparticles using a poly(ethylene glycol) methyl ether (mPEG) macromolecular chain transfer agent (macro-CTA).

scholarly journals Hybrid Mesoporous Silica Nanoparticles Grafted with 2-(tert-butylamino)ethyl Methacrylate-b-poly(ethylene Glycol) Methyl Ether Methacrylate Diblock Brushes as Drug Nanocarrier

Molecules ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 195 ◽  
Author(s):  
Abdullah M Alswieleh ◽  
Abeer M Beagan ◽  
Bayan M Alsheheri ◽  
Khalid M Alotaibi ◽  
Mansour D Alharthi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Ethylene Glycol ◽  
Silica Nanoparticles ◽  
Methyl Ether ◽  
Diblock Copolymer ◽  
Mesoporous Silica Nanoparticles ◽  
Poly Ethylene Glycol ◽  
Ethyl Methacrylate ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

This paper introduces the synthesis of well-defined 2-(tert-butylamino)ethyl methacrylate-b-poly(ethylene glycol) methyl ether methacrylate diblock copolymer, which has been grafted onto mesoporous silica nanoparticles (PTBAEMA-b-PEGMEMA-MSNs) via atom transfer radical polymerization (ATRP). The ATRP initiators were first attached to the MSN surfaces, followed by the ATRP of 2-(tert-butylamino)ethyl methacrylate (PTBAEMA). CuBr2/bipy and ascorbic acid were employed as the catalyst and reducing agent, respectively, to grow a second polymer, poly(ethylene glycol) methyl ether methacrylate (PEGMEMA). The surface structures of these fabricated nanomaterials were then analyzed using Fourier Transform Infrared (FTIR) spectroscopy. The results of Thermogravimetric Analysis (TGA) show that ATRP could provide a high surface grafting density for polymers. Dynamic Light Scattering (DLS) was conducted to investigate the pH-responsive behavior of the diblock copolymer chains on the nanoparticle surface. In addition, multifunctional pH-sensitive PTBAEMA-b-PEGMEMA-MSNs were loaded with doxycycline (Doxy) to study their capacities and long-circulation time.

scholarly journals Synthesis of Michael Acceptor Ionomers of Poly(4-Sulfonated Styrene-co-Poly(ethylene Glycol) Methyl Ether Acrylate)

2009 ◽  
Vol 62 (11) ◽  
pp. 1496 ◽  
Author(s):  
Steevens N. S. Alconcel ◽  
Gregory N. Grover ◽  
Nicholas M. Matsumoto ◽  
Heather D. Maynard
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Chain Transfer ◽  
Solvent System ◽  
Poly Ethylene Glycol ◽  
Polymer Backbone ◽  
Water Solvent ◽  
Michael Acceptor ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Ionomers containing sodium 4-styrene sulfonate (4SS) and poly(ethylene glycol) methyl ether acrylate (PEGA) were synthesized by reversible addition–fragmentation chain transfer (RAFT) polymerization. The polymerization was mediated by 1-phenylethyl dithiobenzoate chain transfer agent in a dimethylformamide/water solvent system. Well-defined copolymers of pPEGA-co-4SS were produced with molecular weights ranging from 10 to 40 kDa and polydispersity indices of 1.06–1.18 by gel permeation chromatography against monodisperse poly(methyl methacrylate) standards. After polymerization, the dithioester was reduced and trapped in situ with divinyl sulfone to produce a well-defined, semitelechelic pPEGA-co-4SS Michael acceptor polymer. UV-visible, infrared, and 1H NMR spectroscopy confirmed that the integrity of the polymer backbone was maintained and that the vinyl sulfone was successfully incorporated at the chain end.

Amphiphilic comb-like pentablock copolymers of Pluronic L64 and poly(ethylene glycol)methyl ether methacrylate: synthesis by ATRP, self-assembly, and clouding behavior

2018 ◽  
Vol 27 (5) ◽  
pp. 297-306 ◽  
Author(s):  
Tamina Perveen ◽  
Shakir Ullah ◽  
Mohammad Siddiq ◽  
Syed Mujtaba Shah ◽  
Asad Muhammad Khan ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Self Assembly ◽  
Poly Ethylene Glycol ◽  
Pentablock Copolymers ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Synthesis of hybrid silica nanoparticles grafted with thermoresponsive poly(ethylene glycol) methyl ether methacrylate via AGET-ATRP

RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 17194-17201 ◽  
Author(s):  
Zhiping Du ◽  
Xiaofeng Sun ◽  
Xiumei Tai ◽  
Guoyong Wang ◽  
Xiaoying Liu
Keyword(s):  
Ethylene Glycol ◽  
Surface Chemistry ◽  
Silica Nanoparticles ◽  
Methyl Ether ◽  
Poly Ethylene Glycol ◽  
Aget Atrp ◽  
Temperature Responsive ◽  
Hybrid Silica ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

This emulsification–demulsification inversion related to the temperature-responsive surface chemistry could in future be exploited for separation and recycling of catalysts.

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