Results 31 to 40 of about 48,944 (309)

Preparation and characterization of cationic Pluronic for surface modification and functionalization of polymeric drug delivery nanoparticles

eXPRESS Polymer Letters, 2016
Biodegradable poly(lactic-co-glycolic acid) copolymer, PLGA nanoparticles (NPs) with a surface layer of poly (ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymers, Pluronics, are promising drug carrier systems.
G. Gyulai, A. Magyar, J. Rohonczy, J. Orosz, M. Yamasaki, Sz. Bosze, E. Kiss   +6 more
doaj   +1 more source

Hierarchical Self-Assembled Structures from Diblock Copolymer Mixtures by Competitive Hydrogen Bonding Strength

Molecules, 2018
In this work we prepared poly(styrene–b–vinylphenol) (PS-b-PVPh) by sequential anionic living polymerization and poly(ethylene oxide-b-4-vinylpyridine) (PEO-b-P4VP) by reversible addition fragmentation chain transfer polymerization (RAFT) by ...
Tzu-Chun Tseng, Shiao-Wei Kuo
doaj   +1 more source

Nanomechanics of confined polymer systems [PDF]

, 2014
Polymers anchored to surfaces play an important role in nature and technology, and regulate diverse interfacial phenomena in areas such as tribology and colloidal stability.
Hyötylä, Janne T.
core   +1 more source

Ciprofloxacin-Loaded Mixed Polymeric Micelles as Antibiofilm Agents

Pharmaceutics, 2023
In this work, mixed polymeric micelles (MPMs) based on a cationic poly(2-(dimethylamino)ethyl methacrylate)-b-poly(ε-caprolactone)-b-poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA29-b-PCL70-b-PDMAEMA29) and a non-ionic poly(ethylene oxide)–b-poly ...
Rumena Stancheva, Tsvetelina Paunova-Krasteva, Tanya Topouzova-Hristova, Stoyanka Stoitsova, Petar Petrov, Emi Haladjova   +5 more
doaj   +1 more source

Synthesis and characterization of amphiphilic block copolymers by transesterification for nanoparticle production

Polímeros
Poly(ε-caprolactone)-block-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL, triblock) and Poly(ε-caprolactone)-block-(poly(ethylene oxide)−poly(propylene oxide)−poly(ethylene oxide)-poly (ε-caprolactone) (PCL-PEO-PPO-PEO-PCL, pentablock ...
André Rocha Monteiro Dias, Beatriz Nogueira Messias de Miranda, Houari Cobas-Gomez, João Guilherme Rocha Poço, Mario Ricardo Gongora Rubio, Adriano Marim de Oliveira   +5 more
doaj   +1 more source

ULTRAFILTRATION AS PRETREATMENT OF REVERSE OSMOSIS: LOW FOULING ULTRAFILTRATION MEMBRANE PREPARED FROM POLYETHERSULFONE–AMPHIPHILIC BLOCK COPOLYMER BLEND

Reaktor, 2009
This paper demonstrates the preparation of polyethersulfone (PES) ultrafiltration (UF) membranes via wet phase inversion method using either poly(ethylene oxide)-b-poly(propylene oxide)-b- poly(ethylene oxide) (Pluronic®, Plu) or polyethylene glycol (PEG)
Heru Susanto, Luqman Buchori, Siswo Sumardiono, Berkah Fajar, Titik Istirokhatun, I Nyoman Widiasa   +5 more
doaj   +1 more source

Enthalpy Relaxation in Poly(propylene oxide)/Poly(ethylene oxide) Blends [PDF]

Polymer Journal, 1995
Phase behavior in poly(propylene oxide)/poly(ethylene oxide) blends was studied by glass transition observations in conjunction with enthalpy relaxation technique. The results points out that the blend behaves as an inmiscible, phase separated system, nevertheless the displacements of the glass transition temperatures together with the results obtained
Morales, Enrique, Acosta, Jose Luis
openaire   +1 more source

Effect of block composition on thermal properties and melt viscosity of poly[2-(dimethylamino)ethyl methacrylate], poly(ethylene oxide) and poly(propylene oxide) block co-polymers

eXPRESS Polymer Letters, 2011
To modify the rheological properties of certain commercial polymers, a set of block copolymers were synthesized through oxyanionic polymerization of 2-(dimethylamino)ethyl methacrylate to the chain ends of commercial prepolymers, namely poly(ethylene ...
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Flexible polymer-induced condensation and bundle formation of DNA and F-actin filaments

, 2001
A simple semi-empirical theory is developed for the ionic strength dependence of the flexible polymer-induced condensation of semiflexible polyelectrolytes such as DNA and F-actin filaments.
Vries, R., de, de Vries, Renko, de Vries, R.   +2 more
core   +1 more source