{"version":"1.0","provider_name":"MECC NANOFIBER","provider_url":"https:\/\/mecc-jp.com\/nano","author_name":"mecc-nano","author_url":"https:\/\/mecc-jp.com\/nano\/author\/mecc-nano\/","title":"Chitosan\/PVA Mixed Solution Conductivity Measurement - MECC NANOFIBER","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"radSIh5c9K\"><a href=\"https:\/\/mecc-jp.com\/nano\/technology\/10584\/\">Chitosan\/PVA Mixed Solution Conductivity Measurement<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/mecc-jp.com\/nano\/technology\/10584\/embed\/#?secret=radSIh5c9K\" width=\"600\" height=\"338\" title=\"&#8220;Chitosan\/PVA Mixed Solution Conductivity Measurement&#8221; &#8212; MECC NANOFIBER\" data-secret=\"radSIh5c9K\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/mecc-jp.com\/nano\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/mecc-jp.com\/nano\/wp-content\/uploads\/2024\/03\/E-tsumugi.png","thumbnail_width":1080,"thumbnail_height":1080,"description":"I&#8217;m Tsumugi, a researcher. This time, I investigated the conductivity of a mixed solution of chitosan and PVA. TsumugiShe is a second-year researcher in the Nanofiber Division of MECC.Her hobbies include reading science magazines and the latestresearch papers, as well as karate. Her special skill is speaking Chinese. \u3000\u3000\u3000 ObjectivePure PVA is highly conductive, but it is written in the literature that adding chitosan greatly reduces the solution&#8217;s conductivity. Curious about whether the conductivity really decreases, I conducted an experiment to see if this effect could provide insights into successful spinning of other natural polymers (such as gelatin) if the conductivity indeed decreases. MaterialsChitosan: 100PVA\u2460: Gohsenol EG-22P (Mitsubishi Chemical)PVA\u2461: Kuraray Poval 217 (Kuraray) Solution PreparationChitosan was added to a 50wt% acetic acid aqueous solution to make a 3wt% solution, which was then heated and stirred at 80\u00b0C. \uff1cConductivity Measurement> The conductivity of the produced solution was measured. The results are shown in the table below.\u3000\u3000\u3000\u3000\u3000 Table 1. Conductivity Measurement Results of PVA Solution Type of solution Conductivity (mS\/cm) PVA\u2460 37.9 PVA\u2461 604 Chitosan \/ PVA\u2460(1\/1) 1596 Chitosan \/ PVA\u2461(1\/1) 1764 \u3000\u3000\u3000\u3000\u3000\u3000 Both PVA\u2460 and \u2461 showed considerably high conductivity. It is likely that the acetic acid in the solution is involved. I also compared the conductivity in acetic acid and acetic acid aqueous solution.\u3000 \u3000\u3000\u3000\u3000 Table 2. Conductivity Measurement Results of Acetic Acid Type of solution Conductivity (mS\/cm) Acetic acid 0.05 Acetic acid \/ H2O(1\/1) 868 \u3000\u3000\u3000\u3000 The conductivity of acetic acid alone was quite low. When made into an\u226b more"}