Results 111 to 120 of about 196,223 (392)

Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]

open access: yes, 2010
Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Chen, Zhen Guo,   +7 more
core   +5 more sources

A Scalable, Durable, Fire‐Safe All‐Day Passive Radiative Cooling Coating for Sustainable Buildings

open access: yesAdvanced Functional Materials, EarlyView.
This study reports a scalable, durable coating that combines a fire‑retardant copolymer adhesive, hollow glass microspheres, and boron oxide to achieve passive radiative cooling with over 94% solar reflectance and >95% mid‑infrared emissivity. The coating maintains performance after UV and rain exposure and exhibits UL‑94 V‑0 fire resistance, enabling ...
Zhewen Ma   +8 more
wiley   +1 more source

Synthesis of mechanically strong waterborne poly(urethane-urea)s capable of self-healing at elevated temperatures [PDF]

open access: yes, 2019
Although various chemistries have been introduced into polyurethanes in order to obtain self-healing abilities, implementing these materials in applications requiring high strength is challenging as strong materials imply a limited molecular motion, but ...
Asua González, José María   +6 more
core  

Full‐Spectrum Solar Harvesting and Desalination Enabled by Supra‐Nano Amorphous Ruthenium Dioxide – Mineral Composites

open access: yesAdvanced Functional Materials, EarlyView.
A mineral‐based supra‐nano amorphous ruthenium dioxide composite (a‐Ru0.5‐AM) was designed, achieving 97% broadband solar absorption. Under one sun, it reaches 87.91 ± 0.32 °C with a distinct thermal buffering effect that favors thermal confinement.
Yunchen Long   +13 more
wiley   +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_5" style="display:none">, Jorge E. Pulido, Álvaro Ramírez, Zhengdong Cheng</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_5')">+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_5" 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_5')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://core.ac.uk/download/pdf/10309000.pdf" target="_blank" rel="nofollow">Flame resistant elastic elastomeric fiber</a> <b><a href="https://core.ac.uk/download/pdf/10309000.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 1974 </span><br><span class="r_content">Compositions exhibit elastomeric properties and possess various degrees of flame resistance. First material polyurethane, incorporates halogen containing polyol and is flame resistant in air; second contains spandex elastomer with flame retardant ...</span><br><span class="r_sub"><i>Howarth, J. T.<span id="ma_6" style="display:none">, Massucco, A. A., Sheth, S., Sidman, K. R.</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_6')">+3 more</a></small></i></span><br><small><a href="https://core.ac.uk/works/4470396" target="_blank" rel="nofollow" title="core.ac.uk/works/4470396">core</a> </small>   <div id="more_6" style="display:none"><a href="http://hdl.handle.net/2060/19740000157" target="_blank" rel="nofollow" title="hdl.handle.net/2060/19740000157">hdl.handle.net</a><br> </div><small><a href="#" onClick="return toggle_div(this, 'more_6')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1002/adfm.202517897" target="_blank" rel="nofollow">Robust Bio‐Textiles Via Mycelium‐Cellulose Interface Engineering</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Advanced Functional Materials, EarlyView.</i></span><br><span class="r_content">This work introduces a new class of sustainable textiles by growing mycelium, the root‐like structure of fungi, into cellulose‐based fabrics. This semi‐interpenetrating mycelium‐cellulose fiber network combines the strength and breathability of natural fibers with the water‐resistant and adhesive properties of mycelium, resulting in a robust, scalable, </span><br><span class="r_sub"><i>Wenhui Xu<span id="ma_7" style="display:none">, Qilong Cheng, Waqas Alam, Yanpei Tian, Pengfei Deng, Zhenyuan Niu, David Warsinger, Tian Li</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_7')">+7 more</a></small></i></span><br><small><a href="https://onlinelibrary.wiley.com/doi/10.1002/adfm.202517897?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default" target="_blank" rel="nofollow" title="wiley.com/doi/10.1002/adfm.202517897?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default">wiley</a> </small>   <div id="more_7" style="display:none"><a href="/sci_redir.php?doi=10.1002%2Fadfm.202517897" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1002/adfm.202517897'); alert('Copied the doi');">copy doi</a> <small>(10.1002/adfm.202517897)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_7')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1002/adfm.202518619" target="_blank" rel="nofollow">Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Advanced Functional Materials, EarlyView.</i></span><br><span class="r_content">Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...</span><br><span class="r_sub"><i>Yuhao Liang<span id="ma_8" style="display:none">, Hao Long, Zimo Huang, Ting He, Xueming Chen, Meng Li, Hao Chen, Shanqing Zhang</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_8')">+7 more</a></small></i></span><br><small><a href="https://onlinelibrary.wiley.com/doi/10.1002/adfm.202518619?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default" target="_blank" rel="nofollow" title="wiley.com/doi/10.1002/adfm.202518619?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default">wiley</a> </small>   <div id="more_8" style="display:none"><a href="/sci_redir.php?doi=10.1002%2Fadfm.202518619" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1002/adfm.202518619'); alert('Copied the doi');">copy doi</a> <small>(10.1002/adfm.202518619)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_8')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1021/ie403745s" target="_blank" rel="nofollow">The solvation and dissociation of 4-benzylaniline hydrochloride in chlorobenzene</a> <b><a href="http://eprints.gla.ac.uk/92854/1/92854.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2014 </span><br><span class="r_content">A reaction scheme is proposed to account for the liberation of 4-benzylaniline from 4-benzylaniline hydrochloride, using chlorobenzene as a solvent at a temperature of 373 K.</span><br><span class="r_sub"><i>Alice A. Miller<span id="ma_9" style="display:none">, Amrute A. P., Archie Eaglesham, Badawi H., Ball D. W., Brock F. H., Burkus J., Cavani F., David Adam, David Lennon, Di Giacomo A., Ding J., Dunlap K. L., Emma K. Gibson, Fogg P. G. T., Freeman R., Frost A. A., Gibson E. K., Gibson E. K., Guéron M., Hevia M. A. G., John M. Winfield, Khairuzzaman A., López N., Mitchell C. J., Mondelli C., Over H., Randall D., Richter R. H., Robert H. Carr, Serajuddin A. T. M., Silkov A. A., Sun S., Sutherland I. W., Tebutt P., Ulrich H., Ulrich H., Yang P. F., Zhang T., Zhang T., Zhang T.</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_9')">+40 more</a></small></i></span><br><small><a href="https://core.ac.uk/works/7472179" target="_blank" rel="nofollow" title="core.ac.uk/works/7472179">core</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.1021%2Fie403745s" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1021/ie403745s'); alert('Copied the doi');">copy doi</a> <small>(10.1021/ie403745s)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_9')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1002/adfm.202518797" target="_blank" rel="nofollow">Electroactive Liquid Crystal Elastomers as Soft Actuators</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Advanced Functional Materials, EarlyView.</i></span><br><span class="r_content">Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.</span><br><span class="r_sub"><i>Yakui Deng, Min‐Hui Li</i></span><br><small><a href="https://onlinelibrary.wiley.com/doi/10.1002/adfm.202518797?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default" target="_blank" rel="nofollow" title="wiley.com/doi/10.1002/adfm.202518797?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default">wiley</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1002%2Fadfm.202518797" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1002/adfm.202518797'); alert('Copied the doi');">copy doi</a> <small>(10.1002/adfm.202518797)</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-medicine/" class="suggestion"onclick="show_loader();"><b>medicine</b></a><br/><a href="/q-chemical_engineering/" class="suggestion"onclick="show_loader();"><b>chemical engineering</b></a><br/><a href="/q-environmental_science/" class="suggestion"onclick="show_loader();"><b>environmental science</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-organic_chemistry/" class="suggestion"onclick="show_loader();"><b>organic chemistry</b></a><br/><a href="/q-polymer/" class="suggestion"onclick="show_loader();"><b>polymer</b></a><br/><a href="/q-polymer_chemistry/" class="suggestion"onclick="show_loader();"><b>polymer chemistry</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-nanotechnology/" class="suggestion"onclick="show_loader();"><b>nanotechnology</b></a><br/><a href="/q-physics/" class="suggestion"onclick="show_loader();"><b>physics</b></a><br/><a href="/q-biology/" class="suggestion"onclick="show_loader();"><b>biology</b></a><br/></div></div></div><div class="pagenav"><a href="/q-polyurethanes/p-11/" rel="nofollow"><b>previous</b></a>   <a href="/q-polyurethanes/p-10/" rel="nofollow">10</a>  <a href="/q-polyurethanes/p-11/" rel="nofollow">11</a>  <b>12</b>  <a href="/q-polyurethanes/p-13/" rel="nofollow">13</a>  <a href="/q-polyurethanes/p-14/" rel="nofollow">14</a>   <a href="/q-polyurethanes/p-13/" 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>