With the increasing of the concentration of alkali, the content of insolubility of the product reduces initially but increases later, the DS of product increases initially then reduces later. The product has good solubility and high DS at 10% content of alkali. The insoluble product reduces at initially and then keeps stability later with the time of basification extending. With the increasing of the content of water in system, theinsolubility of the product reduces initially and then increases later.

隨著堿濃度的增加亚洲中文字幕一区二区三区营，產(chǎn)物中水不溶物含量先降低后增加，取代度先上升后下降午夜影院三级，在10％時免费啪啪黄色视频，水溶性最好，取代度最高日本强伦奸人妻一区二区；延長堿化時間玖玖国产精品视频，產(chǎn)物中水不溶物含量下降，之后趨于穩(wěn)定印度AV在线网站；提高反應(yīng)體系中水的含量黄页在线免费观看色秀，產(chǎn)物中水不溶物含量先降低后增加，在7％時国产精品理论一区，水溶性最好A级毛片免费视频观看，延長分散時間，產(chǎn)物中水不溶物含量下降一级黄片91，取代度提高WWW.禁；醚化劑以少量多次的方式滴加，產(chǎn)物水溶性好亚洲最大无码A∨在线观看。

But chitin and chitosan\'s applications were limited for their insolubility in water.

但由于幾丁質(zhì)和殼聚糖溶解性能差人人妻人人艹，大大限制了它們的應(yīng)用。

The insolubility of PHB in chloroform which pretreated at over 120℃ and its mechanism were studied for the first time.

首次發(fā)現(xiàn)了PHB在120℃—180℃真空加熱處理后會改變其在三氯甲烷等有機溶劑中的溶解性网友自拍日韩经典视频；溶解的程度與加熱處理的溫度欧美午夜三级片、加熱時間和被處理樣品的分子量有關(guān)。

It has low contamination of mineral elements, low hygroscopic and insolubility in water.

堿式氯化鋅是結(jié)晶粉末www.99riav22，是一種低污染的礦物元素亚州黄色专区毛毛片，不易吸潮也不溶于水。

However, the properties of infusibility and insolubility are the obstacles of its application.

但是聚苯胺的難溶解婷婷五月丁香在线、難熔融国产在线观看www、不易加工等特性阻礙了聚苯胺的實用化進程。

For PAn , a serious matter in application is its poor processability resulted from its insolubility and infusibility.

聚苯胺實用化最大的障礙在于其不溶不熔亚洲欧美色图13p，難以加工應(yīng)用亚洲91在线综合。

MOTIVATION: Protein insolubility is a major obstacle for many experimental studies.

動機：蛋白質(zhì)不溶性是很多實驗研究的主要障礙。

The filmstudy is more difficult because of its insolubility and unmeltedproperty,so there is rarely any work in this field.

而由于漆膜是不溶不熔型天然高分子材料国产综合视频网，研究更加困難一级毛片在我的世界免费网站视频，使得這方面的工作幾乎是空白国内妇人成熟A片免费看。

These data suggested that the property of insolubility of Cry7Ba1 crystal was associated with the structure of C-terminal half.

本研究結(jié)果表明Cry7Ba1晶體蛋白難溶的特性是由其C-半段結(jié)構(gòu)決定的，通過改變其C-半段結(jié)構(gòu)改善溶解性黄色色色费一八，為該晶體蛋白的應(yīng)用提供了可能亚洲无码2019。

Though recently ionic materials composed of DNA and polyether-derivatized transition metal complexes were reported, dissolution of proteins and carbohydrates in ionic liquids is generally hindered by their insolubility.

雖然最近離子材料組成DNA和聚醚衍生物過渡金屬配合物的報告，溶解蛋白質(zhì)和碳水化合物的離子液體通常是阻礙其insolubility 精品欧美性爱之吧。