Results 21 to 30 of about 6,932 (305)

The thermal degradation of some polymeric di-alkyl esters of itaconic acid [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
One group of polymers that may help relieve the dependence on crude oil is based on itaconic acid, the biotechnological production of which has become feasible.
Popović Ivanka, Katsikas Lynne
doaj   +1 more source

Functional Polymers and Polymeric Materials From Renewable Alpha-Unsaturated Gamma-Butyrolactones

open access: yesFrontiers 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

Developmental toxicities of methacrylic acid, ethyl methacrylate, n- butyl methacrylate, and allyl methacrylate in rats following inhalation exposure [PDF]

open access: yesToxicological Sciences, 1999
The developmental toxicities of 4 methacrylates were studied in Sprague-Dawley rats after inhalation exposure for 6 h/day, during days 6 to 20 of gestation. The exposure concentrations were, for methacrylic acid, 0, 50, 100, 200, or 300 ppm; for ethyl methacrylate, 0, 600, 1200, 1800, or 2400 ppm; for n-butyl methacrylate, 0, 100, 300, 600, or 1200 ppm;
A M, Saillenfait   +4 more
openaire   +2 more sources

pH‐Sensitive methacrylic acid–methyl methacrylate copolymer Eudragit L100 and dimethylaminoethyl methacrylate, butyl methacrylate, and methyl methacrylate tri‐copolymer Eudragit E100 [PDF]

open access: yesPolymers for Advanced Technologies, 2019
Poly (methyl methacrylate) derivatives such as Eudragit are largely used for drug encapsulation and in controlled oral drug delivery. With special focusing on those applications, solubilization and precipitation conditions of two pH‐sensitive Eudragit polymers, namely, L100 and E100, were investigated via systematic studies.
Sester, Coraline   +5 more
openaire   +2 more sources

Biocompatibility of 3D-Printed Methacrylate for Hearing Devices

open access: yesInventions, 2018
The capacity of 3D printing (3DP) technologies to initiate speedy polymerization of solvent-free resins accounts for their utility in the manufacturing of medical devices.
Frank Alifui-Segbaya, Roy George
doaj   +1 more source

Triethylene glycol dimethacrylate: adjuvant properties and effect on cytokine production

open access: yesActa Biomaterialia Odontologica Scandinavica, 2018
Objective: Leakage of monomers from dental fillings due to incomplete curing is very common. The objective of the present study was to examine the cytokine profile in cells exposed to triethyleneglycol dimethacrylate (TEGDMA) and the adjuvant properties ...
Sara Alizadehgharib   +2 more
doaj   +1 more source

Synthesis and characterisation of photocurable poly(glycerol sebacate)-co-poly(ethylene glycol) methacrylates

open access: yesMaterials Today Advances, 2023
Poly (glycerol sebacate)-co-poly (ethylene glycol) (PGS-co-PEG) copolymers have multifunctional and tunable properties and great potential as high-performance biomaterials.
Mina Aleemardani   +4 more
doaj   +1 more source

Differential orientation and conformation of surface-bound keratinocyte growth factor on (hydroxyethyl)methacrylate, (hydroxyethyl)methacrylate/methyl methacrylate, and (hydroxyethyl)methacrylate/methacrylic acid hydrogel copolymers [PDF]

open access: yesBiointerphases, 2018
The development of hydrogels for protein delivery requires protein–hydrogel interactions that cause minimal disruption of the protein’s biological activity. Biological activity can be influenced by factors such as orientational accessibility for receptor binding and conformational changes, and these factors can be influenced by the hydrogel surface ...
Shohini, Sen-Britain   +3 more
openaire   +2 more sources

4-Nitrophenyl methacrylate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2008
The title compound, C10H9NO4, was obtained serendipitously during the preparation of benzyl cyclohexylcarbamate. The molecule consists of two approximately planar parts, the nitrophenyl ring and the rest of the non-H atoms, with a dihedral angle of 55.05 (6)° between the two segments. The crystal structure is stabilized by weak C—H...O interactions and
Fanqi Qu, Yun-Hua Xu
openaire   +3 more sources

Methacrylate Polymers With “Flipped External” Ester Groups: A Review

open access: yesFrontiers in Dental Medicine, 2022
Current resin composites have favorable handling and upon polymerization initial physical properties that allow for efficient material replacement of removed carious tooth structure.
Dhiraj Kumar   +3 more
doaj   +1 more source

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