A novel optically active diblock copolymer composed of poly(ethylene glycol) and poly[N-{o-(4-phenyl-4,5-dihydro-1,3-oxazol-2-yl)phenyl}maleimide]: Synthesis, micellization behavior, and chiroptical property

2008 ◽  
Vol 46 (3) ◽  
pp. 1025-1033 ◽  
Author(s):  
Liping Lou ◽  
Liming Jiang ◽  
Weilin Sun ◽  
Zhiquan Shen
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Optically Active ◽  
Poly Ethylene Glycol ◽  
Chiroptical Property ◽  
Poly Ethylene ◽  
Micellization Behavior

FhuA deletion variant Δ1-159 overexpression in inclusion bodies and refolding with Polyethylene-Poly(ethylene glycol) diblock copolymer

2011 ◽  
Vol 77 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Tamara Dworeck ◽  
Anne-Kathrin Petri ◽  
Noor Muhammad ◽  
Marco Fioroni ◽  
Ulrich Schwaneberg
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Inclusion Bodies ◽  
Poly Ethylene Glycol ◽  
Deletion Variant ◽  
Poly Ethylene

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.

A biocompatible cobaltporphyrin-based complex micelle constructed via supramolecular assembly for oxygen transfer

2016 ◽  
Vol 4 (5) ◽  
pp. 857-862 ◽  
Author(s):  
Liangliang Shen ◽  
Rui Qu ◽  
Hejin Shi ◽  
Fan Huang ◽  
Yingli An ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymer ◽  
Oxygen Transfer ◽  
Supramolecular Assembly ◽  
Poly Ethylene Glycol ◽  
Hierarchical Assembly ◽  
Poly Ethylene ◽  
Copolymer Poly

Herein, a complex micelle as an oxygen nano-carrier is constructed through the hierarchical assembly of the diblock copolymer poly(ethylene glycol)-block-poly(l-lysine) (PEG-b-PLys), tetrakis(4-sulfonatophenyl)porphinato cobalt(ii) (Co(ii)TPPS), a heptapeptide (Cys-His-His-His-His-His-His) and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin (TM-β-CD).

Asymmetric allylic substitution of cycloalkenyl esters in water with an amphiphilic resin-supported chiral palladium complex

2007 ◽  
Vol 79 (9) ◽  
pp. 1481-1489 ◽  
Author(s):  
Yasuhiro Uozumi
Keyword(s):  
Ethylene Glycol ◽  
Palladium Complex ◽  
Reaction Medium ◽  
Optically Active ◽  
Racemic Mixture ◽  
Poly Ethylene Glycol ◽  
Supported Palladium ◽  
Poly Ethylene ◽  
Phosphine Complex ◽  
Single Reaction

A novel homochiral phosphine ligand, (3R,9aS)[2-aryl-3-(2-diphenylphosphino)phenyl]tetrahydro-1H-imidazo[1,5-a]indole-1-one, was designed, prepared, and anchored onto an amphiphilic polystyrene-poly(ethylene glycol) copolymer (PS-PEG) resin. Catalytic asymmetric substitution of a racemic mixture of cycloalkenyl esters with carbon, nitrogen, and oxygen nucleophiles was achieved in water as the single reaction medium under heterogeneous conditions by using the PS-PEG resin-supported palladium-imidazoindole phosphine complex to give optically active substituted cycloalkenes with up to 99 % ee.

scholarly journals NMR STUDIES ON THE SELF-ASSEMBLE BEHAVIOR OF POLY(ETHYLENE GLYCOL) METHYL ETHER-b-POLY(L-ALANINE) DIBLOCK COPOLYMER

2009 ◽  
Vol 009 (12) ◽  
pp. 1232-1237 ◽  
Author(s):  
Guolin WU ◽  
Zheng WANG ◽  
Hai LIN ◽  
Jie ZHANG ◽  
Pingchuan SUN ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Diblock Copolymer ◽  
The Self ◽  
Poly Ethylene Glycol ◽  
Nmr Studies ◽  
Poly Ethylene ◽  
Glycol Methyl Ether
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