Results 11 to 20 of about 2,946 (246)

Strategy for Flux Enhancement in Biofilm Ceramic Membrane Bioreactor Applying Prepolymerized and Non-Prepolymerized Inorganic Coagulants [PDF]

open access: goldWater, 2019
Considering new legislative and economic restrictions caused by the water crisis, this work focuses on a more efficient wastewater treatment process, which combines biological treatment in a moving bed biofilm system with a membrane bioreactor (BF-MBR) and coagulation, particularly addressing fouling alleviation in the separation stage.
Olga Kulesha   +3 more
openalex   +4 more sources

Theoretical Studies of Cortisol-Imprinted Prepolymerization Mixtures: Structural Insights into Improving the Selectivity of Affinity Sensors [PDF]

open access: hybrid, 2017
The binding affinity of molecularly imprinted polymers (MIPs) relies on the mechanisms and the extent of the functional monomer-template interactions present in the prepolymerization mixture.
Pandiaraj Manickam   +3 more
openalex   +2 more sources

On the Influence of Crosslinker on Template Complexation in Molecularly Imprinted Polymers: A Computational Study of Prepolymerization Mixture Events with Correlations to Template-Polymer Recognition Behavior and NMR Spectroscopic Studies [PDF]

open access: goldInternational Journal of Molecular Sciences, 2014
Aspects of the molecular-level basis for the function of ethylene glycol dimethacrylate and trimethylolproprane trimethacrylate crosslinked methacrylic acid copolymers molecularly imprinted with (S)-propranolol have been studied using a series of all ...
Siamak Shoravi   +3 more
openalex   +2 more sources

Gel Entrapment of Enzymes in Cross‐linked Prepolymerized Polyacrylamide‐Hydrazide [PDF]

open access: bronzeAnnals of the New York Academy of Sciences, 1983
La technique decrite pourra etre appliquee a la preparation de films et de membranes a enzymes (electrodes a enzymes) ainsi qu'a la preparation de billes contenant des ...
Amihay Freeman   +2 more
openalex   +3 more sources

Prepolymerization and morphology. Study on the factors determining powder morphology in propylene polymerization.

open access: gold, 2001
Due to the developments in catalysis and the use of improved and dedicated catalysts in modern polymerization processes, the variety of different grades of polyolefins produced (and with that the variety of possible applications) has increased rapidly over the past decades.
Jochem T. M. Pater
openalex   +3 more sources

Fabrication of a Molecularly Imprinted Nano-Interface-Based Electrochemical Biosensor for the Detection of CagA Virulence Factors of H. pylori [PDF]

open access: yesBiosensors, 2022
H. pylori is responsible for several stomach-related diseases including gastric cancer. The main virulence factor responsible for its establishment in human gastric cells is known as CagA.
Kirti Saxena   +5 more
doaj   +2 more sources

Properties of Hybrid Resin Composite Systems Containing Prepolymerized Filler Particles [PDF]

open access: bronzeOperative Dentistry, 2009
SUMMARY This study compared the properties of newer hybrid resin composites with prepolymerized-filler particles to traditional hybrids and a micro-fill composite. The following properties were examined per composite: diametral tensile strength, flexural strength/modulus, Knoop microhardness and polymerization shrinkage.
J. T. Blackham   +2 more
openalex   +3 more sources

Production of high-molecular-weight Nylon 6 using prepolymerization process.

open access: bronzeNIPPON KAGAKU KAISHI, 1988
ナイロン6の製造において,重合平衡にある溶融ポリマー中に溶存あるいはポリマー末端基の形で存在する水分量と,出発原料であるe-カプロラクタムに触媒として添加する水量との差である余剰水分を,プレポリマー段階で除去することにより,高重合度ポリマーを安定的に生産することを検討した。反応の進行につれてプレポリマーの活性末端基濃度はピークを示し,このピークを越えた領域でプレポリマーから水分を除去してもその後の反応は順調に進行する。水分の蒸発速度はプレポリマーの溶融粘性の影響を大きく受ける。一方,プレポリマーの溶融粘性は,低分子量抽出分が溶剤として作用し,重合平衡に到達する直前から急増するので,その前に脱ガス部を設けると円滑に余剰水分を系外に除去することができる。これらの事実から ...
Akio Fujimoto   +2 more
openalex   +3 more sources

fecto del electrodonador externo y la prepolimerización sobre el rendimiento de catalizadores Ziegler-Natta en la polimerización de propileno Effect of external donor and prepolymerization on the performance of Ziegler-Natta catalysts in propylene polymerization

open access: greenRevista Técnica de la Facultad de Ingeniería, 2009
En un reactor autoclave, operado por cargas, se polimerizó propileno líquido usando dos sistemas catalíticos Zigler-Natta: MgCl2/TiCl4/ftalato (A) y MgCl2/TiCl4/1,3-diéter (B).
Francisco Osorio   +3 more
doaj   +1 more source

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