Results 71 to 80 of about 1,079,542 (262)

Kinetics of Enzyme Biodegradation of New Synthesized Copolymers [PDF]

open access: yesBioautomation, 2005
Block copolymers of the poly-(hexanlactam)-co-block-poly-(?-valerolactone) from ABA-type were synthesized via anionic polymerization of hexanlactam (HL) with the sodium salt of hexanlactam (Na-HL) as an initiator and polymeric activator (PAC).
Rosa Mateva   +2 more
doaj  

Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization

open access: yesAdvanced Functional Materials, EarlyView.
Embedded frontal polymerization direct ink writing (FP‐DIW) combines frontal ring‐opening metathesis polymerization with embedded 3D printing to decouple deposition from curing. A yield‐stress support bath stabilizes low‐viscosity inks, while on‐demand thermal initiation enables controlled front propagation. This approach expands the accessible feature
Mohammad Tanver Hossain   +12 more
wiley   +1 more source

Selective directed self-assembly of coexisting morphologies using block copolymer blends

open access: yesNature Communications, 2016
There is a limited range of structures available in nanolithography using directed self-assembled block copolymers. Here, Black and co-workers expand directed self-assembly chemical patterning by using a blend of lamellar and cylinder forming block ...
A. Stein   +4 more
doaj   +1 more source

Electrically Induced Phase Transition and Synaptic Functionality in MoTe2/Graphene Memristors

open access: yesAdvanced Functional Materials, EarlyView.
An electrically induced reversible 2H ↔ 1T′ phase transition is demonstrated in a vertical Au/Ti/MoTe2/graphene memristor with a laterally contacted graphene electrode. Resistive switching proceeds through a compositionally invariant amorphous/2H ↔ amorphous/1T′ transformation, in which a self‐formed amorphous MoTe2 interfacial region is proposed to ...
Chien‐Hua Wang   +7 more
wiley   +1 more source

Design, synthesis, and characterization of functional block copolymers containing fluorinated or hydrophilic segments by ATRP [PDF]

open access: yes, 2008
textWell-defined functional block copolymers containing either a fluorinated or a hydrophilic segment can be synthesized via a controlled free-radical technique, known as atom transfer radical polymerization (ATRP). Their self assembly characteristics in
Bucholz, Tracy Laine, 1981-
core  

Fortschritte bei der Synthese von Kunststoffen

open access: yesCHIMIA, 1974
One of the main tasks of industrial polymer research is to verify physical models via directed synthesis using common monomers. Recent advances in this direction are described in the area of copolymerization (alternating copolymers, random copolymers ...
H. Cherdon
doaj   +1 more source

Novel Pentablock Copolymers as Thermosensitive Self-Assembling Micelles for Ocular Drug Delivery [PDF]

open access: yesAdvanced Pharmaceutical Bulletin, 2017
Many studies have focused on how drugs are formulated in the sol state at room temperature leading to the formation of in situ gel at eye temperature to provide a controlled drug release.
Mitra Alami-Milani   +6 more
doaj   +1 more source

Confinement in Metal‐Organic Frameworks as a Route to Harnessing Liquid Barocalorics in the Solid‐State

open access: yesAdvanced Functional Materials, EarlyView.
Encapsulation of solid–liquid barocalorics (BC) within MOFs harnesses their colossal BC performance whilst allowing active control of BC properties through BC‐MOF interactions. ABSTRACT Barocaloric (BC) effects at liquid–vapor transitions in hydrofluorocarbons drive most commercial technologies used for heating and cooling in the heating, ventilation ...
Ming Zeng   +8 more
wiley   +1 more source

Ultrathin Amphipathic Dual‐Polymer Networks: Unlocking Hyper‐Permeable CO2 Capture via Solvent‐Mediated Poly(Ethylene Oxide) Amorphization

open access: yesAdvanced Functional Materials, EarlyView.
Hydrophilic PEO‐copolymers and hydrophobic PDMS are physically integrated via a compatibilizing solvent into an amphipathic dual‐polymer network with versatile interfacial affinity and completely amorphized PEO segments for hyper‐permeable CO2 transport.
Ji Wu   +9 more
wiley   +1 more source

Retrospective Analysis of Polyethylene Oxide and Polypropylene Oxide Block Copolymers Production and Industrial Applications (Review)

open access: yesРазработка и регистрация лекарственных средств
Introduction. Nowadays block copolymers of PEO and PPO (poloxamers, pluronics, proxanols) are among the most popular polymers in the pharmaceutical and biotechnological industries.
E. O. Bakhrushina   +4 more
doaj   +1 more source

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