Results 141 to 150 of about 79,415 (301)

Monomer reactivity ratios of cellulose grafted with N-cyclohexylacrylamide and methyl methacrylate by atom transfer radical polymerization

open access: yes, 2014
The atom transfer radical polymerization (ATRP) of N-cyclohexylacrylamide (NCA) with methyl methacrylate (MMA) was performed in dimethylformamide (DMF) at 130 °C, in the presence of cellulose chloroacetate (Cell.ClAc) macro initiator, Cu(I)Cl/2,2 ...
Çankaya, Nevin, Temüz M.M.
core  

Copolimeros graftizados de quitina e quitosana com monomeros acrilicos. Estudos de adsorção de Ca (II) e a aplicações na tecnologia do papel [PDF]

open access: yes, 1993
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.O presente trabalho descreve a reação de graftização de manômeros acrílicos sobre quitina/quitosana, utilizando o íon Ce(IV) como iniciador redox ...
Furlan, Ligia
core  

State‐of‐the‐Art and Synthetic Challenges for Hydrosilane Production

open access: yesChemistry – A European Journal, EarlyView.
The synthesis of hydrosilanes is currently energy intensive and their recycling is not considered. However, these compounds are important in many industrial fields but also for the valorization of oxygenated waste, towards a circular economy. This review compares the available synthetic routes and highlights the remaining challenges for the production ...
Gabriel Durin   +3 more
wiley   +1 more source

Matrix‐Free Afterglow Carbon Dots: Synthetic Strategies, Luminescence Mechanisms, and Emerging Applications

open access: yesCarbon Innovation, EarlyView.
This review systematically elucidates the luminescence mechanism, synthesis methods of matrix‐free afterglow carbon dots, and their application progress in information encryption, light‐emitting diodes, sensing, bioimaging, and tumor treatment, and finally, discusses the current challenges and future development directions. ABSTRACT Afterglow materials,
Yupeng Liu   +5 more
wiley   +1 more source

(Hydroxypropyl)methyl Cellulose-Chitosan Film as a Matrix for Lipase Immobilization-Part ΙΙ: Structural Studies. [PDF]

open access: yesGels, 2022
Vassiliadi E   +6 more
europepmc   +1 more source

Mass Transport Mechanisms in 2D Laminar Nanofluidic Membranes for Separation and Energy Conversion

open access: yesCarbon Innovation, EarlyView.
This review explores how two‐dimensional laminar membranes govern the transport of ions and molecules in confinement for advanced separation and energy conversion. By discussing how nanochannel architecture shapes membrane performance, this work highlights cation intercalation and functional modifications to improve osmotic energy harvesting ...
Adhy Prihatmiko Wibowo   +3 more
wiley   +1 more source

Effects of Methyl Cellulose on the Cellulolytic Bacterium, Ruminococcus Flavefaciens (Rumen, Anaerobe)

open access: yes, 1986
Cellulose degradation by Ruminococcus flavefaciens and other ruminal cellulolytic bacteria was strongly inhibited by highly substituted methyl celluloses (degree of substitution > 1.5 and mol wt > 12,000).
Rasmussen, Mark Axel
core  

Unravelling the initiator‐only stage in alginate grafting: Radical‐induced depolymerization and its impact on acrylamide grafting efficiency

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Free‐radical grafting of natural polymers often assumes that initiators only create active sites before monomer addition. We tested this by exposing sodium alginate to potassium persulphate (KPS) under typical grafting conditions without monomer (acrylamide).
Gustavo P. Zago, João B. P. Soares
wiley   +1 more source

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