Results 11 to 20 of about 15,728 (247)

PLA-Based Electrospun Nanofibrous Mats Towards Application as Antibiotic Carriers: Processing Parameters, Fabrication and Characterization [PDF]

open access: yesPharmaceutics
Background/Objectives: Polymeric nanofibers are promising platforms for skin treatment applications due to their large surface area and high porosity, which promote enhanced drug delivery.
Evi Christodoulou   +6 more
doaj   +2 more sources

Recovery of an Antioxidant Derived from a Phenolic Diphosphite from Wastewater during the Production of a Polypropylene Compound: A Step towards Sustainable Management [PDF]

open access: yesMolecules
Organic phosphoester (OPE) antioxidants are currently required due to their contribution to enhancing the quality of polymers, including polypropylene (PP).
Joaquín Hernández-Fernández   +2 more
doaj   +2 more sources

Production of Pentaerythritol Monoricinoleate (PEMR) by immobilized Candida antarctica lipase B

open access: yesBiotechnology Reports, 2019
In the present study, green synthesis of pentaerythritol monoricinoleate (PEMR) was carried out using Candida antarctica lipase B immobilized on hydrophobic adsorbent via interfacial activation.
Manish G. Yadav   +4 more
doaj   +1 more source

Influence of the Process of Synthesis of Zeolites from Volcanic Ash in Its Synergistic Action as a Flame-Retardant for Polypropylene Composites

open access: yesBuildings, 2021
In this research, the influence of natural zeolites obtained from the volcanic ash of the Ubinas volcano has been studied as synergistic agents in a flame-retardant system (composed of ammonium polyphosphate, pentaerythritol, and polypropylene).
Jonathan Almirón   +5 more
doaj   +1 more source

Analyzing Pentaerythritol Stearate Homologs with NMR Spectroscopy

open access: yesChinese Journal of Magnetic Resonance, 2018
A pentaerythritol stearate sample with unknown composition was analyzed by nuclear magnetic resonance (NMR) spectroscopy (i.e., 1H NMR, quantitative 13C NMR, DEPT135, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC).
LI Chun-fa   +3 more
doaj   +1 more source

D-Optimal Design Optimization for Esterification of Palm Fatty Acids Distillate with Polyhydric Alcohols for Biolubricants Production [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
Plant-based bio-lubricant is crucial to be developed and adopted by many industries.  This is due to the presence of toxicity risk, climate change, energy security as well green-environmental approach issues.
Majd Ahmed Jumaah   +2 more
doaj   +1 more source

Stereoisomerism in pentaerythritol-bridged cyclotriphosphazene tri-spiranes: spiro and ansa 1,3-propanediyldioxy disubstituted derivatives [PDF]

open access: yes, 2005
Four isomeric products were isolated and purified from the reaction of 1,3-propanediol with the tetra-spirane cyclophosphazene-organophosphate compound (1): viz. the di-monospiro (2a), di-monoansa (2b) and two monospiro-monoansa derivatives (2c) and (2d).
Aylin, U.   +6 more
core   +1 more source

High Oleic Pentaerythritol Tetraester Formation via Transesterification: Effect of Reaction Conditions

open access: yesIndonesian Journal of Chemistry, 2020
Pentaerythritol tetraoleate esters synthesized from high oleic palm oil methyl ester (POME) have potential as biolubricant base stock. In the present study, the chemical transesterification of POME and pentaerythritol (PE) using sodium methoxide as a ...
Nor Faeqah Idrus   +4 more
doaj   +1 more source

Physical mechanism of anisotropic sensitivity in pentaerythritol tetranitrate from compressive-shear reaction dynamics simulations [PDF]

open access: yes, 2010
We propose computational protocol (compressive shear reactive dynamics) utilizing the ReaxFF reactive force field to study chemical initiation under combined shear and compressive load.
Goddard, William A., III   +4 more
core   +1 more source

Sintesis de poliuretanos a partir de polioles obtenidos a partir del aceite de higuerilla modificado por transesterificación con pentaeritritol Polyurethanes sintetized of polyols obtained from castor oil modified by transesterification with pentaerythritol</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Química Nova</i>, 2008 </span><br><span class="r_content">Castor oil was reacted by transesterification with various percentages in mass of pentaerythritol to obtain different esters of pentaerythritol. Alternatively, glycerol was also used instead of pentaerythritol for the same reaction in order to establish ...</span><br><span class="r_sub"><i>Manuel F. Valero<span id="ma_10" style="display:none">, Jorge E. Pulido, Álvaro Ramírez, Zhengdong Cheng</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_10')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/cb845b3b31224c5f94e377eef3c8ac64" target="_blank" rel="nofollow" title="doaj.org/article/cb845b3b31224c5f94e377eef3c8ac64">doaj</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-40422008000800031" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-40422008000800031'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-40422008000800031)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_10')">+1 more source</a></small><br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-3._good_health/" class="suggestion"onclick="show_loader();"><b>3. good health</b></a><br/><a href="/q-crystallography/" class="suggestion"onclick="show_loader();"><b>crystallography</b></a><br/><a href="/q-propylene_glycols/" class="suggestion"onclick="show_loader();"><b>propylene glycols</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-pentaerythritol_tetranitrate/" class="suggestion"onclick="show_loader();"><b>pentaerythritol tetranitrate</b></a><br/><a href="/q-esterification/" class="suggestion"onclick="show_loader();"><b>esterification</b></a><br/><a href="/q-humans/" class="suggestion"onclick="show_loader();"><b>humans</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-transesterification/" class="suggestion"onclick="show_loader();"><b>transesterification</b></a><br/><a href="/q-animals/" class="suggestion"onclick="show_loader();"><b>animals</b></a><br/></div></div></div><div class="pagenav"><a href="/q-pentaerythritol/" rel="nofollow"><b>previous</b></a>   <a href="/q-pentaerythritol/" rel="nofollow">1</a>  <b>2</b>  <a href="/q-pentaerythritol/p-3/" rel="nofollow">3</a>  <a href="/q-pentaerythritol/p-4/" rel="nofollow">4</a>  <a href="/q-pentaerythritol/p-5/" rel="nofollow">5</a>   <a href="/q-pentaerythritol/p-3/" id="next" rel="nofollow"><b>next</b></a> </div><br></div> </div> <script>document.getElementById('loadingGif').style.display='none';</script><div style="width: 100%; height: 40px; bottom: 0px; background-color: #f5f5f5;"><div style="padding-left: 15px; padding-top: 10px"> <a href="/" rel="nofollow">Home</a> - <a href="/page-about/" rel="nofollow">About</a> - <a href="/page-disclaimer/" rel="nofollow">Disclaimer</a> - <a href="/page-privacy/" rel="nofollow">Privacy</a> </div></div> <link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.min.css"/> </body> </html>