Results 241 to 250 of about 79,415 (301)

Bioconversion and characterization of watermelon rind waste‐based microcrystalline cellulose: A green alternative to synthetic reinforcements

Polymer International, EarlyView.
Microcrystalline cellulose (MCC) was extracted from watermelon rind using acid hydrolysis. MCC can be efficiently used as reinforcement in biofilms and biocomposites. Abstract The increasing accumulation of agricultural waste from watermelon (Citrullus lanatus) represents a substantial environmental concern, particularly in view of the extensive ...
Indran Suyambulingam, Sunesh Narayanaperumal, Divya Divakaran, Nadir Ayrilmis, P Senthamaraikannan, Siva Avudaiappan, Yamuna Munusamy, H Jeevan Rao   +7 more
wiley   +1 more source

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

Polymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani, Shengwei Sun, Erik Sundén, Diana Bernin, Per‐Olof Syrén   +4 more
wiley   +1 more source

High‐strength composites by thiocracking of high‐polypropylene‐content mixed waste

Polymer International, EarlyView.
Mixed plastic waste made up of polystyrene and polypropylene was reacted with elemental sulfur to give high‐strength composites. Abstract Mixed‐material municipal waste poses a persistent end‐of‐life management challenge because the heterogeneous composition limits efficient separation and recycling. After disposal, mixed‐material waste often fragments
Athira Babu, Rhett C. Smith
wiley   +1 more source

Sensitivity of Irish Pyrenopeziza brassicae populations to methyl benzimidazole carbamate (MBC), quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides

Pest Management Science, EarlyView.
For three collections of Irish Pyrenopeziza brassicae populations fungicide sensitivity status to methyl benzimidazole carbamate (MBC), quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides was determined using sensitivity screening in vitro. Molecular mechanisms of insensitivity have been identified for MBC and QoI in
Diana E Bucur, Yong‐Ju Huang, Bruce DL Fitt, Steven Kildea   +3 more
wiley   +1 more source

Seedling resistance and chemical defenses against Psylliodes chrysocephala: the roles of seed age and sinapinic acid in Sinapis alba and Brassica napus

Pest Management Science, EarlyView.
The cabbage stem flea beetle (Psylliodes chrysocephala) is a major pest of winter oilseed rape (Brassica napus). We tested B. napus and Sinapis alba seedlings for feeding resistance and underlying chemical defenses. S. alba was least damaged, while metabolite profiles revealed resistance‐linked compounds, highlighting breeding potential for insect ...
Daniel Rüde, Samantha M Cook, Bernd Ulber, Tobias Pöhnl, Michael Rostás   +4 more
wiley   +1 more source

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Hydration of methyl cellulose

Polymer, 1991
Abstract Measurements of the sound velocity in and density of solutions of methyl cellulose have been carried out at various temperatures (15, 25, 30 and 35°C). The partial molar volume and partial molar adiabatic compressibility of methyl cellulose have been evaluated from these data as a function of degree of substitution, i.e.
Shinobu Koda, Hiroyasu Nomura, Fumio Kawaizumi   +2 more
exaly   +2 more sources

Spectrophotometric detection of methyl cellulose–manganate(VI) intermediate complex in the oxidation of methyl cellulose by alkaline permanganate

Carbohydrate Polymers, 2002
Abstract The formation of (methyl cellulose (MC)–Mn(VI)O2−4) MC − + MnO 4 − ↔ K 3 C 2 → k b MC–Mn (VI) O 4 2− where C2 is a metastable state that interconverts into the [MC–Mn(VI)O4−] ester intermediate, during the oxidation of methyl cellulose polysaccharide at pH≥12, was followed ...
Rafat M El-Khatib
exaly   +2 more sources

Stable Aqueous Foams from Cellulose Nanocrystals and Methyl Cellulose

Biomacromolecules, 2016
The addition of cellulose nanocrystals (CNC) greatly enhanced the properties of methylcellulose (MC) stabilized aqueous foams. CNC addition decreased air bubble size, initial foam densities and drainage rates. Mixtures of 2 wt % CNC + 0.5 wt % MC gave the lowest density foams.
Zhen, Hu, Richard, Xu, Emily D, Cranston, Robert H, Pelton   +3 more
openaire   +2 more sources

The Methylation of Cellulose Xanthate1

Textile Research Journal, 1957
The distribution of xanthate groups along cellulose chains in commercial viscose solutions very probably affects the processing qualities of the viscose and also the physical properties of the spun yarn. The rayon manufacturer, therefore, as well as the cellulose chemist, is interested in knowing what that distribution is.
Bernard J. Barrett, Charles H. Lindsley
openaire   +1 more source

The Determination of Formaldehyde in Cellulose Formals and. Methylated Cellulose Formals

Textile Research Journal, 1968
It is shown that only Schiff's method is suitable for the determination of formaldehyde in methylated cellulose formals. These are intermediates in the elucidation of the struc ture of cotton cross-linked with formaldehyde. Some modifications of the usual pro cedure are recommended to obtain an accuracy of 3% relative to the amount
Ramanathan, S., Rivlin, Joseph, Stamm, O.A., Zollinger, H.   +3 more
openaire   +2 more sources