如何将聚合物石灰石水溶液化学成分中不溶性成分分理出来

【图文】第二章 聚合物分子量和溶液性质_百度文库
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第二章 聚合物分子量和溶液性质
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你可能喜欢中低相对分子质量抗盐聚合物的分子聚集及溶液特性 - 中国期刊全文数据库
中国期刊全文数据库
中低相对分子质量抗盐聚合物的分子聚集及溶液特性
【Author】
SUN Gang,LUO Feng(Exploration and Development Institute of Daqing Oilfield Company Ltd.,Daqing,Heilongjiang 163712,China)
【摘要】 为满足大庆油田二、三类油层开发的实际需求,研究中低相对分子质量抗盐聚合物分子间的相互作用、分子聚集和溶液特性,评价分子聚集对现场应用条件的适应性.通过与溶液渗流特性、驱油效果的对比,探讨了中低分抗盐聚合物的驱油机理,指出抗盐聚合物聚集体的滞留能力强、变形能力差,其调剖能力与黏度不成比例,以及分子聚集体的尺寸和变形能力对驱油效果有较大影响,为现场应用中低分抗盐聚合物和指导中低分抗盐聚合物改性提供了依据.
【关键词】 ;
中国石油天然气股份有限公司科技攻关项目()
【所属期刊栏目】
(2007年06期)
【分类号】TE357.4
【被引频次】5
【下载频次】152
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下载历史:疏水缔合聚合物分子量及其分布与溶液性质关系研究 -
西南石油大学图书馆
疏水缔合聚合物分子量及其分布与溶液性质关系研究
Investigation of the Relationship of Molecular Weight and Molecular Weight Distribution with the Solution Properties of Hydrophobically Associating Polymer
专业与研究方向:
应用化学 提高采收率
西南石油大学
论文完成年度:
中图分类号:
中文关键词:
疏水缔合聚合物;疏水缔合作用;分子量;分子量分布;疏水单体含量
英文关键词:
Hydrophobically Associated Water-soluble Polymer;Hydrophobic association;Molecular weight;Molecular weight distribution;Hydrophobic monomer content
  疏水缔合聚合物(HAWSP)的缔合作用使其具有特殊的结构,产生了特有的流变性,因而在许多领域有广泛的应用前景。疏水缔合聚合物与普通部分水解聚丙烯酰胺相比,表现出良好的耐温、耐盐和抗剪切等溶液性能,使其在化学驱提高采收率方面得到了广泛的应用。可是由于HAWSP溶液中存在分子内和分子间缔合作用,使得疏水缔合聚合物是以聚集体形态存在溶液中,并不是以单个分子态分散在溶液中,因此对研究疏水缔合聚合物的分子性质造成了难题,例如测定疏水缔合聚合物分子量及其分布。本文首先找到可以消除缔合作用的两种有机溶剂甲酰胺和1,3-丙二醇的溶剂条件,测定疏水缔合聚合物的真实分子量,建立测定疏水缔合聚合物分子量分布的新方法,为此本文从以下几个方面进行了研究:  1、合成一系列疏水缔合聚合物,并利用红外光谱(IR)和核磁共振氢谱(1H NMR)对目标物的分子结构进行表征。  2、研究甲酰胺和1,3-丙二醇对缔合作用的影响,找到可以完全消除缔合作用的溶剂条件:甲酰胺/1,3-丙二醇体积分数为50%;在消除缔合作用后,考察了盐浓度对聚电解质效应的影响,当NaCl浓度为0.2mol/L时,即可屏蔽聚电解质效应。  3、在甲酰胺或1,3-丙二醇体积分数为50%溶剂条件下均能测定疏水缔合聚合物真实分子量,并在50% 1,3-丙二醇、0.2mol/L NaCl溶剂条件下,标定Mark-Houwink方程中的K值为0.273和α值为0.532。  4、根据膜分离原理,得到了一系列不同孔径的微孔滤膜通过的聚合物的分子量,并建立了测定聚合物分子量分布的方法。  5、根据阴阳离子相互作用,用二氯荧光黄作指示剂,建立了一种滴定疏水单体含量的方法。  6、考察了疏水单体含量和分子量分布对HAWSP溶液性能的影响(抗温性、抗盐性和抗剪切性)。
  Hydrophobically Associated Water-soluble Polymer has a special structure. It has broad application prospects in many areas. Hydrophobic Hydrophobically Associated Water-soluble Polymer had better performances than HPAM in thermal stability, temperature tolerance and salt-resistant properties, so that it has been widely used in Enhanced Oil Recovery.Howerver, because of intramolecular and intermolecular association in HAWSP solution, there are a lot of macromolecular aggregations in HAWSP solution and molecular of HAWSP did not disperse in solution in the form of single molecular. Studying the molecular characterization of hydrophobic associating polymers is too difficult, such as determining hydrophobic association polymer molecular weight and its distribution. Finding suitable solvent condition that could eliminate the hydrophobic association and real molecular weight of HAWSP can be measured. Establishing a new method of determining molecular weight distribution of Hydrophobically Associated Water-soluble Polymer .The main experiment results are listed as follows:  1. A series of Hydrophobically Associated Water-soluble Polymer were Synthesized and characterized by using IR and 1HNMR.  2. Study on the effect of the concentration of formamide or 1,3-propylene glycol on hydrophobic association. Finding the optimized solvent condition that can eliminate completely hydrophobic association: formamide or 1,3-propylene glycol volume fraction of 50%. When hydrophobic association was eliminated completely, investigating the effect of the concentration of NaCl on polyelectrolyte effect.  3. The real molecular weight of HAWSP was measured at the formamide or 1,3-propylene glycol volume fraction of 50% and the values of K and α of Mark-Houwink equation, respectively, were 0.273, 0.532 on the 50% 1,3-propylene glycol, 0.2mol/L NaCl.  4. According to the principle of membrane separation, a series of molecular weight of the polymer were obtained with different pore microporous membranes and a method of measuring the molecular weight distribution of polymer were established.  5. Based on the principle of cationic/anionic ions interact, a method of a hydrophobic monomer content titration was established, 2’, 7’-dichlorofluorescein as an indicator.  6. Study on the effect of the hydrophobic monomer content and molecular weight distribution on HAWSP solution properties (thermal stability,temperature tolerance and salt-resistant properties).
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CopyRight 2016 西南石油大学图书馆【阴离子聚**酰胺】是水溶性的高分子聚合物_新闻动态_聚丙烯酰胺厂家|阴离子聚丙烯酰胺|阳离子聚丙烯酰胺|聚丙烯酰胺价格|聚丙烯酰胺用途|郑州聚丙烯酰胺价格|郑州聚丙烯酰胺厂家_郑州永泉水处理材料有限公司第二章 聚合物分子量和溶液性质_图文_百度文库
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第二章 聚合物分子量和溶液性质
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