Synthesis in aqueous media of poly(ethylene phosphoric acids) by mild thermolysis of homopolymers and block copolymers based on tert-butyl ethylene phosphate

2018 ◽  
Vol 106 ◽  
pp. 249-256 ◽  
Author(s):  
Ilya E. Nifant'ev ◽  
Andrey V. Shlyakhtin ◽  
Vladimir V. Bagrov ◽  
Pavel D. Komarov ◽  
Alexander N. Tavtorkin ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Aqueous Media ◽  
Tert Butyl ◽  
Poly Ethylene ◽  
Phosphoric Acids

Synthesis and self-association in aqueous media of poly(ethylene oxide)/poly(ethyl glycidyl carbamate) amphiphilic block copolymers

Polymer ◽  
2006 ◽  
Vol 47 (14) ◽  
pp. 4905-4915 ◽  
Author(s):  
Philip Dimitrov ◽  
Alicja Utrata-Wesołek ◽  
Stanislav Rangelov ◽  
Wojciech Wałach ◽  
Barbara Trzebicka ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Aqueous Media ◽  
Amphiphilic Block Copolymers ◽  
Poly Ethylene Oxide ◽  
Self Association ◽  
Poly Ethylene ◽  
Glycidyl Carbamate

Synthesis of polystyrene-poly(tert-butyl methacrylate)-poly(ethylene oxide) triarm star block copolymers

2004 ◽  
Vol 42 (7) ◽  
pp. 1745-1751 ◽  
Author(s):  
Mohamad Nasser-Eddine ◽  
Simone Reutenauer ◽  
Christelle Delaite ◽  
Guy Hurtrez ◽  
Philippe Dumas
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Butyl Methacrylate ◽  
Tert Butyl ◽  
Poly Ethylene Oxide ◽  
Star Block Copolymers ◽  
Poly Ethylene

scholarly journals A New Approach to Developing Long-Acting Injectable Formulations of Anti-HIV Drugs: Poly(Ethylene Phosphoric Acid) Block Copolymers Increase the Efficiency of Tenofovir against HIV-1 in MT-4 Cells

2020 ◽  
Vol 22 (1) ◽  
pp. 340
Author(s):  
Ilya Nifant’ev ◽  
Andrei Siniavin ◽  
Eduard Karamov ◽  
Maxim Kosarev ◽  
Sergey Kovalchuk ◽  
...  
Keyword(s):  
Controlled Release ◽  
Block Copolymers ◽  
Phosphoric Acid ◽  
Hiv Infection ◽  
Targeted Delivery ◽  
Release Formulation ◽  
Poly Ethylene ◽  
Long Acting ◽  
Hiv Drugs ◽  
Anti Hiv

Despite the world’s combined efforts, human immunodeficiency virus (HIV), the causative agent of AIDS, remains one of the world’s most serious public health challenges. High genetic variability of HIV complicates the development of anti-HIV vaccine, and there is an actual clinical need for increasing the efficiency of anti-HIV drugs in terms of targeted delivery and controlled release. Tenofovir (TFV), a nucleotide-analog reverse transcriptase inhibitor, has gained wide acceptance as a drug for pre-exposure prophylaxis or treatment of HIV infection. In our study, we explored the potential of tenofovir disoproxil (TFD) adducts with block copolymers of poly(ethylene glycol) monomethyl ether and poly(ethylene phosphoric acid) (mPEG-b-PEPA) as candidates for developing a long-acting/controlled-release formulation of TFV. Two types of mPEG-b-PEPA with numbers of ethylene phosphoric acid (EPA) fragments of 13 and 49 were synthesized by catalytic ring-opening polymerization, and used for preparing four types of adducts with TFD. Antiviral activity of [mPEG-b-PEPA]TFD or tenofovir disoproxil fumarate (TDF) was evaluated using the model of experimental HIV infection in vitro (MT-4/HIV-1IIIB). Judging by the values of the selectivity index (SI), TFD exhibited an up to 14-fold higher anti-HIV activity in the form of mPEG-b-PEPA adducts, thus demonstrating significant promise for further development of long-acting/controlled-release injectable TFV formulations.

Cleavage of polystyrene-b -poly(ethylene oxide) block copolymers with a trithiocarbonate linkage in solutions

2010 ◽  
Vol 48 (17) ◽  
pp. 3834-3840 ◽  
Author(s):  
Min Cao ◽  
Jian-Qi Wang ◽  
Peng-Cheng Chen ◽  
Jun-Ting Xu ◽  
Zhi-Qiang Fan
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Synthesis and properties of semifluorinated block copolymers containing poly(ethylene oxide) and poly(fluorooctyl methacrylates) via atom transfer radical polymerisation

Polymer ◽  
2002 ◽  
Vol 43 (25) ◽  
pp. 7043-7049 ◽  
Author(s):  
Kwon Taek Lim ◽  
Min Young Lee ◽  
Myung Jun Moon ◽  
Gun Dae Lee ◽  
Seong-Soo Hong ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Atom Transfer ◽  
Radical Polymerisation ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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