Results 11 to 20 of about 194,083 (306)

ABA triblock copolymers: from controlled synthesis to controlled function [PDF]

open access: yes, 2003
The ABA amphiphilic block copolymers, poly(hydroxyethyl methacrylate-hlock-methylphenylsilane-block-hydroxyethyl methacrylate) (PHEMA-PMPS-PHEMA) and poly[oligo(ethylene glycol) methyl ether methacrylate-block-methylphenylsilane-block-oligo(ethylene ...
Allen   +71 more
core   +19 more sources

Efficient Synthesis of Narrowly Dispersed Brush Copolymers and Study of Their Assemblies: The Importance of Side Chain Arrangement [PDF]

open access: yes, 2009
Efficient, one-pot preparation of synthetically challenging, high molecular weight (MW), narrowly dispersed brush block copolymers and random copolymers in high conversions was achieved by ring-opening metathesis (co)polymerization (ROMP) of various ...
Grubbs, Robert H.   +3 more
core   +1 more source

Stereo block copolymers of L- and D-lactides [PDF]

open access: yes, 1990
Sequential diblock copolymers composed of L- and D-lactic acid residues were synthesized through a living ring-opening polymerization of L- and D-lactide initiated by aluminium tris(2-propanolate).
Dijkstra, Pieter J.   +2 more
core   +3 more sources

Biomechanical Behaviors and Degradation Properties of Multilayered Polymer Scaffolds: The Phase Space Method for Bile Duct Design and Bioengineering

open access: yesBiomedicines, 2023
This article reports the electrospinning technique for the manufacturing of multilayered scaffolds for bile duct tissue engineering based on an inner layer of polycaprolactone (PCL) and an outer layer either of a copolymer of D,L-lactide and glycolide ...
Ilya Klabukov   +20 more
doaj   +1 more source

PSt-b-PU-b-PSt copolymers using tetraphenylethane-urethane macroinitiator through SARA ATRP

open access: yeseXPRESS Polymer Letters, 2016
The course of supplemental activator and reducing agent (SARA) atom transfer radical polymerization (ATRP) has been presented in the presence of Cu0. The novelty of this work is that SARA ATRP has been used for the first time to synthesize polystyrene-b ...
P. Chmielarz, P. Krol
doaj   +1 more source

Bio-Inspired Amphiphilic Block-Copolymers Based on Synthetic Glycopolymer and Poly(Amino Acid) as Potential Drug Delivery Systems [PDF]

open access: yes, 2020
In this work, a method to prepare hybrid amphiphilic block copolymers consisting of biocompatible synthetic glycopolymer with non-degradable backbone and biodegradable poly(amino acid) (PAA) was developed.
Dobrodumov, Anatoliy   +10 more
core   +1 more source

SILATRANE-CONTAINING POLYMETHACRYLATES

open access: yesТонкие химические технологии, 2019
The possibility of synthesizing silatrane-containing polymers was investigated using three different synthetic methods: the formation of silatrane fragments from polymers with trialkoxysilyl groups, the copolymerization of silatrane-containing monomers ...
V. V. Istratov   +3 more
doaj   +1 more source

Preparation of multiblock copolymers via step-wise addition of l-lactide and trimethylene carbonate. [PDF]

open access: yes, 2018
Poly(l-lactide) (PLA) is a bioderived and biodegradable polymer that has limited applications due to its hard and brittle nature. Incorporation of 1,3-trimethylene carbonate into PLA, in a block copolymer fashion, improves the mechanical properties ...
Abubekerov, Mark   +5 more
core   +1 more source

Novel Composite Membranes Based on Chitosan Copolymers with Polyacrylonitrile and Polystyrene: Physicochemical Properties and Application for Pervaporation Dehydration of Tetrahydrofuran

open access: yesMembranes, 2019
Pervaporation has been applied for tetrahydrofuran (THF) dehydration with novel composite membranes advanced by a thin selective layer composed of chitosan (CS) modified by copolymerization with vinyl monomers, acrylonitrile (AN) and styrene, in order to
Ksenia V. Otvagina   +6 more
doaj   +1 more source

Polyesteramides with mixtures of poly(tetramethylene oxide) and 1,5 pentanediol [PDF]

open access: yes, 1997
Segmented polyesteramides have been synthesized from N,N¿-bis(p-carbomethoxybenzoy)butanediamine as crystalline segments and mixtures of poly(tetramethylene oxide) (mol. wt. 1000) and 1,5-pentanediol as soft segments.
Gaymans, R.J., Guang, Li
core   +3 more sources

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