Results 21 to 30 of about 36,587 (184)

Crystalline Structure of Cellulose in Wood after Chemical Modification Using Cyclic Acid Anhydrides (Maleic and Succinic)

open access: yesBioResources, 2023
The chemical modification of wood can be directed to improve various properties, e.g., the dimensional stability, hardness properties, and/or durability properties, against weathering. In this study, a Romanian softwood species Abies alba L.
Carmen-Alice Teacă
doaj   +2 more sources

Effect of cell wall modification of styrene wood polymer with maleic anhydride and glycidyl methacrylate on thermal stability, mechanical behavior and biological resistance of composite [PDF]

open access: yesIranian Journal of Wood and Paper Industries, 2017
This research was investigated the effect of maleic anhydride and glycidyl methacrylate on thermal stability, mechanical behavior and biological resistance of hornbeam wood polymer containing styrene monomer.
maryam ghorbani   +2 more
doaj  

Synthesis and Study of Modified Succinimide Polymer Additives for Motor Oils [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The article presents the results of research on the synthesis of new succinimide additives AKI-634, AKI-635, AKI-636, and AKI-637. Additive AKI-634 is a succinimide obtained by condensation of hexene-1 with styrene with maleic anhydride, AKI-635 – of ...
Vagif Farzaliyev   +4 more
doaj   +1 more source

Physical, Mechanical, and Thermal Properties of Wood Flour Reinforced Maleic Anhydride Grafted Unsaturated Polyester (UP) Biocomposites

open access: yesBioResources, 2015
Physical, mechanical, and thermal properties of wood flour reinforced ungrafted and maleic anhydride grafted unsaturated polyester biocomposites were investigated.
Md. Rezaur Rahman   +4 more
doaj   +1 more source

The cellular interactions of PEGylated gold nanoparticles : effect of PEGylation on cellular uptake and cytotoxicity [PDF]

open access: yes, 2014
Poly(ethylene glycol) (PEG) is frequently used to coat various medical nanoparticles (NPs). As PEG is known to minimize NP interactions with biological specimens, the question remains whether PEGylated NPs are intrinsically less toxic or whether this is ...
Abdelmonem, Abuelmagd M   +10 more
core   +1 more source

HET acid based oligoesters – TGA/FTIR studies [PDF]

open access: yes, 2008
One of the important reactive halogenated dicarboxylic acids used in the synthesis of flame retardant unsaturated polyester resins is 1,4,5,6,7,7-hexachlorobicyclo [2.2.1] hept-5-ene-2,3-dicarboxylic acid (HET acid).
Rajkumar, Thangamani   +3 more
core   +2 more sources

SYNTHESIS, CHARACTERIZATION AND KINETIC STUDIES OF SOME OXAZEPINE AND OXAZEPANE FROM REACTION OF ETHYLIMINO AND DIETHYLIMINO WITH MALEIC, SUCCINIC AND PHTHALIC ANHYDRIDE [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
: Ethylimino and Di Ethylimino were prepared by condensation of Ethylene diamine with one equivalent and tow equivalent of substituted benzaldehyde. These ethylimino were reacted with one equivalent of maleic , succinic and phthalic anhydride in absolute
mohammed A.Al-Hadithi   +2 more
doaj   +1 more source

Hydrophobically modified polyelectrolytes as potential drugs reservoirs of n-alkyl-nitroimidazoles [PDF]

open access: yes, 2007
Indexación: ScieloThe solubilization of three commercial drugs (ornindazole, metronidazole and tinidazole) and model compounds (N-alkyl-2-methyl-4-nitroimidazoles) on aggregates formed by anionic polyelectrolytes, carrying alkyl side chains of different ...
Acevedo, Betsabé   +3 more
core   +1 more source

Improving Purity of Maleic Anhydride Production by Multi-stage Distillation

open access: yesJournal of Chemical Engineering Research Progress
The maleic anhydride production via benzene oxidation is a highly exothermic reaction which causes the product temperature will increase then it needs to be cooled down with a heat exchanger.
Muhammad Askal Asyfianto   +3 more
doaj   +1 more source

Investigation of Mechanical Properties of Jute Fiber Reinforced Low Density Polyethylene Composites

open access: yesJournal of Natural Fibers, 2022
The environmentally friendly natural fiber reinforced polymers are increasingly taking attention in several industries like automotive and construction due to their properties such as being synthesized in desired properties, easy processing, non ...
Sabih Ovalı, Erhan Sancak
doaj   +1 more source

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