Results 21 to 30 of about 158,769 (301)

Simultaneous fabrication of line and dot dual nanopatterns using miktoarm block copolymer with photocleavable linker

open access: yesNature Communications, 2017
Block copolymers that form nanodomains and are used in nanolithography usually do not form nanopatterns with multiple shapes. Here the authors report a block copolymer that allows for UV- induced cleavage of one arm and demonstrate the transformation of ...
Chungryong Choi   +7 more
doaj   +1 more source

Aliphatic Anion Exchange Ionomers with Long Spacers and No Ether Links by Ziegler–Natta Polymerization: Properties and Alkaline Stability

open access: yesMolecules, 2022
In this work we report the synthesis of poly(vinylbenzylchloride-co-hexene) copolymer grafted with N,N-dimethylhexylammonium groups to study the effect of an aliphatic backbone without ether linkage on the ionomer properties.
Raul Andres Becerra-Arciniegas   +5 more
doaj   +1 more source

Preparation of Solid Self-Nanoemulsifying Drug Delivery Systems (S-SNEDDS) by Co-Extrusion of Liquid SNEDDS and Polymeric Carriers—A New and Promising Formulation Approach to Improve the Solubility of Poorly Water-Soluble Drugs

open access: yesPharmaceuticals, 2022
The present study focused on a new formulation approach to improving the solubility of drugs with poor aqueous solubility. A hot melt extrusion (HME) process was applied to prepare drug-loaded solid self-nanoemulsifying drug delivery systems (S-SNEDDS ...
Fabian-Pascal Schmied   +2 more
doaj   +1 more source

Valorization of cashew industry wastewater as a carbon and nutrient source for the microbial growth and production of the polyhydroxyalkanoates: A potential biopolymer by Bacillus species

open access: yesCogent Engineering, 2023
Wide applications of conventional plastics across the world have made its production inevitable. To avoid the ecocide occurring due to conventional plastics, studies on the production and extraction of renowned biopolymers like polyhydroxyalkanoates ...
Vrunda N Katagi   +4 more
doaj   +1 more source

Self-Assembly and Applications of Amphiphilic Hybrid POSS Copolymers

open access: yesMolecules, 2018
Understanding the mechanism of molecular self-assembly to form well-organized nanostructures is essential in the field of supramolecular chemistry. Particularly, amphiphilic copolymers incorporated with polyhedral oligomeric silsesquioxanes (POSSs) have ...
Hong Chi   +4 more
doaj   +1 more source

CSA Doped Poly(aniline-co-o-toluidine) and Dispersed Zinc Oxide Nanoparticles: a Promising Material for Photovoltaics [PDF]

open access: yesMaterials Research, 2015
Copolymerization of aniline and o-toluidine is achieved by chemical oxidative polymerization with equal molar ratio of monomers in the presence of hydrochloric acid and ammonium persulphate as an oxidant.
Arunachalam Mahudeswaran   +4 more
doaj   +1 more source

Biomimetic superstructures from amphiphilic ABA-triblock copolymers [PDF]

open access: yes, 2005
The spontaneous formation of nanostructured materials by molecular self-assembly of block copolymers is an active area of research, driven both by its inherent beauty and by a wealth of potential technological applications. The so-called “supramolecular”
Grumelard, Julie
core   +1 more source

Polymeric nanocapsules for pharmaceutical applications [PDF]

open access: yes, 2012
Polymeric nanoparticles can be used for drug release in cancer therapy. Nanoparticles can be divided into nanospheres and nanocapsules, accordingly to their structure.
Valente, Ilaria
core   +1 more source

Studies on Electroactivity, Conductivity and Solubility of 2-Anilinoethanol Homopolymer and its Aniline Copolymers Using Oxidation andElectrochemical Methods [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2009
Copolymerization of aniline and 2-anilinoethanol was carried out by electrochemical and chemical polymerization. Homo and copolymer thin films were synthesized electrochemically, under cyclic voltammetric conditions in aqueous solutions of sulfuric acid ...
B. Massoumi   +3 more
doaj   +1 more source

Demonstration of Equivalence of Generic Glatiramer Acetate and Copaxone®

open access: yesFrontiers in Pharmacology, 2021
The objective of the current work was to demonstrate the equivalence of Mylan’s glatiramer acetate (GA) to that of the reference product Copaxone® (COP) using the four criteria for active pharmaceutical ingredient sameness as established by the US Food ...
Peter Lipsky   +12 more
doaj   +1 more source

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