Results 31 to 40 of about 8,357 (162)

HPLC/MS-TOF Analysis of Surface Resins from Three Poplar Clones Grown in Serbia

South-East European Forestry, 2016
Background and Purpose: Poplar clones grown in Serbia are fast growing tree species important for many different purposes in forestry and industry. In this study chemical content of the surface resins of three poplar clones grown in Serbia - M1, B229 and
Branislav Trudić, Boban Anđelković, Saša Orlović, Vele Tešević, Andrej Pilipović, Mirjana Cvetković, Jovana Stanković   +6 more
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b>Preparation of novolacs using phenolic rich components as partial substitute of phenol from biomass pyrolysis oils

Bulletin of the Chemical Society of Ethiopia, 2010
The possibility of using phenolic rich components (water insoluble fraction) from biomass pyrolysis oil as partial substitute of phenol in synthesis of high-ortho phenolic novolac under the catalyst of HCl/Zn(AC)2 has been proved using differential ...
Xu Junming, Jiang Jianchun, Lv Wei
doaj  

Preparation of phenolic resin complexes

مجلة بغداد للعلوم, 2006
in this worl three types of complexed phenolic resins were prepared using various additives such as and improving the aim of this work higher mechanical properties this work is ...
Baghdad Science Journal
doaj   +1 more source

Structure and curing mechanism of resol phenol–formaldehyde prepolymer resins; pp. 225–232 [PDF]

Proceedings of the Estonian Academy of Sciences, 2010
Prepolymer resol resins with different phenol/formaldehyde/NaOH molar ratios were synthesized and characterized by technical analysis as well as by 13C NMR spectra for samples in CD3OD solution. Larger amounts of NaOH promoted the binding of formaldehyde
Peep Christjanson, Tõnis Pehk, Jane Paju   +2 more
doaj   +1 more source

Electrochemically treated lignin in phenolic resins for plywood panels

Sustainable Chemistry for the Environment, 2023
In achieving the European Union's goal of making Europe the first climate-neutral continent by 2050, the scientific community is striving to develop processes and products that are technologically and economically sustainable to replace/substitute fossil-
Electra Papadopoulou, Theresa Rücker, Zoe Nikolaidou, Sotirios Kountouras, Themistoklis Sevastiadis, Torbjørn Pettersen, Bernd Wittgens   +6 more
doaj   +1 more source

Crystal structure of 1,2-bis(6-bromo-3,4-dihydro-2H-benz[e][1,3]oxazin-3-yl)ethane: a bromine-containing bis-benzoxazine

Acta Crystallographica Section E: Crystallographic Communications, 2016
The title benzoxazine molecule, C18H18Br2N2O2, was prepared by a Mannich-type reaction of 4-bromophenol with ethane-1,2-diamine and formaldehyde. The title compound crystallizes in the monoclinic space group C2/c with a centre of inversion located at the
Augusto Rivera, Jicli José' Rojas, Jaime Ríos-Motta, Michael Bolte   +3 more
doaj   +1 more source

Mussel‐Inspired and Recyclable Cardanol‐Based Supramolecular Networks for Multifunctional and Sustainable Resins

EcoMat
Dynamic covalent epoxy resins integrate the merits of thermoplastics and thermosets, enabling reprocessability while maintaining covalent crosslinking. However, achieving simultaneous shape memory, intrinsic flame retardancy, and antibacterial properties
Yun Hu, Ye Sha, Meng Zhang, Yonghong Zhou, Tianyu Zhu, Dawei Zhao, Puyou Jia   +6 more
doaj   +1 more source

C—I...N short contacts as tools for the construction of the crystal packing in the crystal structure of 3,3′-(ethane-1,2-diyl)bis(6-iodo-3,4-dihydro-2H-1,3-benzoxazine)

Acta Crystallographica Section E: Crystallographic Communications, 2017
The asymmetric unit of the title compound, C18H18I2N2O2, consists of one half-molecule, completed by the application of inversion symmetry. The molecule adopts the typical structure for this class of bis-benxozazines, characterized by an anti orientation
Augusto Rivera, Jicli José Rojas, Jaime Ríos-Motta, Michael Bolte   +3 more
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Crystal structure of 2,2′-(ethane-1,2-diyl)bis(2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazine): a prospective raw material for polybenzoxazines

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, C26H24N2O2, the oxazine moiety is fused to a naphthalene ring system. The asymmetric unit consists of one half of the molecule, which lies about an inversion centre.
Augusto Rivera, Juan E. Cepeda-Santamaría, Jaime Ríos-Motta, Michael Bolte   +3 more
doaj   +1 more source

A COMBINATION OF POLYETHYLENIMINE AND PHENOLIC RESIN AS AN ADHESIVE FOR WOOD-BASED PANELS

BioResources, 2012
The purpose of this study is to develop a low-formaldehyde-emitting resin system for medium density fibreboards (MDF). A combination of polyamines with phenolic resins seems to be suitable for this purpose.
Olaf Georg Treusch,, Alexander Petutschnigg   +1 more
doaj