It is pointed out that the biodegradability of modified sodium polyacrylate can be improved by introducing vinyl alcohol to its molecular chain.
綜述了無磷洗滌助劑的開發(fā)進展 ,并對 4A沸石、偏硅酸鈉、聚丙烯酸鈉、沸石P、順丁烯二酸酐 丙烯酸共聚物鈉鹽、層狀結(jié)晶二硅酸鈉等助劑的性能作了評述 ;指出在改性聚丙烯酸鈉分子鏈中引入乙烯醇能改善其生物降解
The results in-dicate that the loss of aβ-hydrogen from 2-hydroxyethyl radical to yield vinyl alcohol and that a 1,3-hydrogen shift to form ethoxy radical have close A factors and rate constants.
用量子化學(xué)結(jié)果和Eyring過渡態(tài)理論計算了200-1200K溫度范圍內(nèi),標(biāo)題反應(yīng)的A因子和速度常數(shù),結(jié)果表明,2-羥乙基脫去β-H生成乙烯醇與其經(jīng)[1,3]重排生成乙氧基有相近的A因子和速度常數(shù),且常溫下速度較慢,反應(yīng)難以進行。
Synthesize on modification for polyvinyl alcohol by etherifying agent;
醚化改性聚乙烯醇的合成研究
Preparation and characterization of paraffin/polyvinyl alcohol phase change fibers for energy storage;
石蠟/聚乙烯醇相變儲能纖維的制備與表征
Study on esterification modification for polyvinyl alcohol;
酯化改性聚乙烯醇的研究
PVA-Assisted Synthesis and Characterization of CdS Nanowires;
聚乙烯醇輔助合成CdS納米線及其表征
Study on Gasoline Barrier Property of PVA Blown Tubes;
聚乙烯醇吹塑管坯汽油阻隔性能的研究
Treatment of PVA-containing Wastewater with Coagulating Method;
混凝法處理含聚乙烯醇廢水
The casting solution is comprised of polyvinyl alcohol(PVA) as membrane material, polyethylene glycols(PEG) as additive.
采用聚乙烯醇(PVA)為膜材料,以聚乙二醇(PEG)為致孔劑,利用相轉(zhuǎn)化法制備超濾(UF)膜用于分離蠶蛹蛋白。
Biological activated carbon fiber beads were prepared by fixing microbe which originated from activated sludge incubated in phenol,on activated carbon fiber(ACF) and using polyvinyl alcohol(PVA) as embedding material.
采用經(jīng)苯酚馴化后的活性污泥,以活性炭纖維為載體,以聚乙烯醇(PVA)為包埋劑制成固定化生物活性炭纖維小球。
The casting solution is comprised of polyvinyl alcohol(PVA)as membrane material, polyethylene glycols(PEG)as additive.
本研究以聚乙烯醇(PVA)為膜材料,以聚乙二醇(PEG)為致孔劑配制鑄膜液,凝固浴為去離子水,利用相轉(zhuǎn)化法制備超濾(UF)膜用于分離蠶蛹蛋白。
Study on Gas Barrier Property of Poly (vinyl alcohol);
聚乙烯醇材料阻氣性能研究
Spun poly (vinyl alcohol) with different degrees of alcoholysis by gel-spinn ing method and drew them,then got a series of PVA fiber with alcoholysis degree 99.
用不同醇解度的聚乙烯醇進行凍膠紡絲 ,得到了醇解度為 99 5 %、93%、86 %的聚乙烯醇纖維 ,研究了不同醇解度下纖維中的氫鍵及其對纖維力學(xué)性能的影響。
Orthogonal experiments were carried out to study the effects of the preparation processing conditions on the structure of Poly (vinyl alcohol)/montmorillonite nanocomposites, which were prepared by means of solution intercalation-casting film method, and confirmed the optimum preparation method.
通過正交實驗法研究了溶液插層-流延成膜法制備聚乙烯醇/蒙脫石納米復(fù)合材料中制備工藝條件對復(fù)合材料結(jié)構(gòu)的影響,確定了最佳的制備方法。
Effect of dilute acetic acid on electrospinnability of poly(vinyl alcohol)aqueous solution;
稀乙酸對聚乙烯醇水溶液靜電紡絲性能的影響
Characteristics of a mixed culture for degradation of poly(vinyl alcohol)and optimization of culture conditions;
一個降解聚乙烯醇混合菌系的降解特性及培養(yǎng)基碳氮源優(yōu)化
On Structure and Properties of Konjac Glucomannan-Chitosan Poly(vinyl alcohol) Fertilizers;
葡甘聚糖—殼聚糖—聚乙烯醇肥料包膜的結(jié)構(gòu)表征及性能研究
polyvinyl acetal resin
聚乙烯醇縮乙醛樹脂
Radiation Effect of Ethylene-vinyl Alcohol Copolymers (EVOH);
乙烯—乙烯醇無規(guī)共聚物(EVOH)的輻射效應(yīng)
Experimental Study of the National Eval Embolic Mixture;
國產(chǎn)乙烯乙烯醇聚合物(EVAL)的實驗研究
Study on Polyvinylidene Fluoride (PVDF)/Polyvinyl Alcohol (PVA) Blend Membrane;
聚偏氟乙烯(PVDF)/聚乙烯醇(PVA)共混膜研究
polyvinyl formal wire
聚乙烯醇縮甲醛絕緣線
pelyvinyl formal fibre
聚乙烯醇縮甲醛纖維
polyvinyl butyral cementing agent
聚乙烯醇縮丁醛粘合劑
compatible cross-linked polyvinyl alcohol
相容的交聯(lián)聚乙烯醇
Preparation and Research of Poly(Ethylene-Co-Vinyl Alcohol) Alkaline Battery Separator;
聚乙烯—乙烯醇堿性電池隔膜的制備及性能研究
Production and Market Prospects of Ethylene Vinyl Alcohol Copolymer;
乙烯-乙烯醇共聚物的生產(chǎn)及市場前景分析
catalyst for ethanol delydration to ethylene
乙醇脫水制乙烯催化劑
polyoxyethylene lauryl sulfate triethanolamine salt
月桂醇聚氧乙烯醚硫酸三乙醇胺鹽
diethylene glycol monoacrylate
二乙二醇單丙烯酸酯
ethylene glycol dimethacrylate
乙二醇二甲基丙烯酸酯
polyethylene glycol fumarate
聚反丁烯二酸乙二醇酯
vinylated alkyd resi
乙烯基改性醇酸樹脂
dibutoxy triethylene glycol
二丁氧基三乙烯甘醇
dibutoxy tetraethylene glycol
二丁氧基四乙烯甘醇
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