Results 91 to 100 of about 6,932 (305)

Copolymers Formation by Photopolymerization of (Meth)acrylates Containing Dissolved Polyheteroarylenes

open access: yesInternational Journal of Polymer Science, 2009
Radical photopolymerization of (meth)acrylates in the presence of dissolved polyheteroarylenes has been investigated. The kinetics of radical polymerization of unsaturated monomers in the presence of polyheteroarylenes and model compounds has been ...
Dmitriy A. Sapozhnikov   +7 more
doaj   +1 more source

Polymerization of Methacrylates in twin screw extruders [PDF]

open access: yes, 1995
As an alternative for conventional polymerization processes which often require the use of solvents, the possibilities of two types of extruder as polymerization reactors for methacrylates were investigated.
Jongbloed, Hetty Aletta,   +1 more
core  

Controlled radical polymerization of alkyl methacrylates in the presence of NO/NO2 mixtures

open access: yes, 2003
Radical polymerization of alkyl methacrylates initiated by AIBN is controlled when conducted in the presence of a mixture of NO/NO2. Reaction of alkyl methacrylates with NO/NO2 leads indeed to the monomer adduct and parent α-nitro, ω-nitroso oligomers ...
Claes, Michaël   +5 more
core   +1 more source

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

open access: yesAdvanced Healthcare Materials, EarlyView.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best   +5 more
wiley   +1 more source

Nitroxide mediated polymerization of methacrylates at moderate temperature

open access: yes, 2014
peer reviewedIn this communication we report the first homopolymerization of a variety of methacrylates by an NMP process at moderate temperature (40–50 °C), using an easily accessible and inexpensive nitroxide precursor.
Jérôme, Christine   +6 more
core   +1 more source

Luminescent Properties of Polycarbonate Methacrylates Containing Organic Fluorescent Dyad

open access: yes, 2023
The luminescent properties of photocured aliphatic and aromatic network polycarbonate methacrylates, containing organic fluorescent dyad, have been studied.
Alexander V. Lyubimov   +7 more
core   +1 more source

Packed for Ossification: High‐Density Bioprinting of hPDC Spheroids in HAMA Toward Endochondral Ossification

open access: yesAdvanced Healthcare Materials, EarlyView.
Human periosteum‐derived cell spheroids bioprinted at high density within a hyaluronic acid matrix promote fusion and hypertrophic cartilage formation in vitro. Early encapsulation enhances spheroid interaction and matrix maturation, generating scalable cartilage templates intended for endochondral bone regeneration.
Ane Albillos Sanchez   +6 more
wiley   +1 more source

The release of biologically hazardous chemical compounds from orthodontic adhesive systems used in Europe and in the USA — an in vitro study

open access: yesPolimery, 2015
The study assessed the chemical stability of ConTec LC, Resilence, Light Bond and TransbondXT orthodontic adhesive resins. The subject of the analysis was the release of HEMA (2-hydroxyethylmethacrylate), TEGDMA (triethylene glycol dimethacrylate ...
Konrad Małkiewicz   +4 more
doaj   +1 more source

Penultimate unit effect in the copolymerization of alkyl methacrylates and styrene

open access: yes, 1969
Kinetics of bulk copolymerization of styrene and alkyl methacrylates, namely, ethyl, isobutyl and n-nonyl methacrylate have been investigated at 60°C, and the extent of diffusion-controlled termination in these systems has also been checked.
Palit, Santi R., Chaudhuri, Ajit Kumar
core   +1 more source

Microengineered Gradient Hydrogels for Mechanobiology

open access: yesAdvanced Healthcare Materials, EarlyView.
Gradient hydrogels are used to mimic the mechanical heterogeneity in native tissues, offering powerful in vitro platforms to study cell‐material interactions in diverse pathophysiological contexts. Here, we present a comprehensive review of the design and experimental considerations for stiffness gradient hydrogels, discussing exemplary achievements ...
Shin Wei Chong   +4 more
wiley   +1 more source

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