Results 41 to 50 of about 51,419 (284)
Research and Review of Polymethyl-Methacrylate Copolymers in the Development of Enhanced Pharmaceutical Delivery Systems [PDF]
, 2020 The following thesis shall primarily explore the current research regarding the implementation of modifiable microscopic and nanoscopic polymer particles as novel pharmaceutical delivery systems. Polymethacrylate-based copolymers, such as EudragitTM, are
Dyess, Jake
core +1 more source
Nanometer-Scale Precision Tuning of 3D Photonic Crystals Made Possible Using Polyelectrolytes with Controlled Short Chain Length and Narrow Polydispersity [PDF]
, 2013 Nanometer‐scale tuning of the optical properties of prefabricated photonic crystals is achieved via layer‐by‐layer assembly of polyelectrolytes in the interstitial spaces of the photonic lattice.
Arsenault, André C. +8 more
core +2 more sources
GelsAn alternative synthetic pathway was proposed for the optimization of synthesis to find a better correlation between the swelling and elasticity of hyaluronic acid-interpenetrated gels via temperature regulation.
Nida Özcan, Nermin Orakdogen
doaj +1 more source
Synthesis of Water-Based Dispersions of Polymer/TiO2 Hybrid Nanospheres
Nanomaterials, 2015 We develop a strategy for preparing water-based dispersions of polymer/TiO2 nanospheres that can be used to form composite materials applicable in various fields. The formed hybrid nanospheres are monodisperse and possess a hierarchical structure.
Lu Jin, Hua Wu, Massimo Morbidelli
doaj +1 more source
Functional Polymers and Polymeric Materials From Renewable Alpha-Unsaturated Gamma-Butyrolactones
Frontiers in Chemistry, 2019 Sustainable chemistry requires application of green processes and often starting materials originate from renewable resources. Biomass-derived monomers based on five-membered γ-butyrolactone ring represent suitable candidates to replace sources of fossil
Jozef Kollár +4 more
doaj +1 more source
Novel "green" catalysts for controlled ring-opening polymerization of lactide [PDF]
, 2010 Syntéza polylaktidu (PLA) polymerací za otevření kruhu cyklického monomeru (ROP) může být uskutečněna různými způsoby. Literatura uvádí více než 100 katalytických systémů, jejichž pomocí lze polylaktid a jiné biodegradabilní alifatické polyestery získat.
Surman, František
core
Viscosity-temperature relationships in the system Na2Si2O5-Na4Al2O5 [PDF]
, 1986 The viscosity-temperature relationships of five melts on the join Na2Si2O2-Na4Al2O5 (5, 10, 20, 30 and 40 mole percent Na4Al2O5) have been measured in air, at 1 atm and 1000–1350°C with a concentric cylinder viscometer.
Dingwell, Donald B.
core +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
AggregatePolyolefin‐b‐poly(ethylene oxide) (PEO) represents the most widely investigated amphiphilic block copolymers. So far, one‐pot continuous synthesis of such hybrid block copolymers has only been fulfilled by anionic polymerization through sequential ...
Lijun Liu +5 more
doaj +1 more source
Process for preparation of large-particle-size monodisperse latexes [PDF]
, 1981 Monodisperse latexes having a particle size in the range of 2 to 40 microns are prepared by seeded emulsion polymerization in microgravity. A reaction mixture containing smaller monodisperse latex seed particles, predetermined amounts of monomer ...
El-Aasser, M. S. +3 more
core +1 more source