Triton X-100/C10H21OH/H2O体系层状液晶中超微粒子材料PbS的合成

将Pb(NO3)2和Ns2S分别溶于Triton X-100/C10H21OH/H2O体系层状液晶溶剂层中, 混和即可在溶剂层中生成PbS粒子, 并以层状液晶中溶剂层厚度的大小, 限定所合成PbS粒子的尺寸小于10nm, 改变有关组分含量对PbS超微粒子大小无显著影响, 所合成PbS超微粒子的平均粒径均小于10nm.     

Triton X-100/C10H21OH/H2O体系微乳液与溶致液晶

关于离子型表面活性剂生成的微乳液与溶致液晶已有不少研究，非离子型表面活性剂生成的微乳液与港致液晶的应用正在引起人们的重视，但由于药物提纯的困难，对其物理化学性质的研究还不多见．本文以非离子表面活性剂TritonX－100／C10H21OH／H2O体系为例，研究了非离子型表面活性剂微乳液和溶致液晶的生成及其结构特性．1实验部分试剂ThitonX－100（Aldrich公司，分析纯）正癸醇（分析纯）、水为一次蒸馏水微乳液区域和层状液晶区域的确定方法及小角x射线衍射测定方法同文献，实验温度20±0．1℃．2结果与讨论2·IThtonX－100、CIOH…     

Triton X—100／C10H21OH／H2O体系层状液晶中水溶性超微粒子材…

利用溶剂在层状液晶中的渗透性和层状液晶中溶剂层厚度的限定性，在ＴｒｉｔｏｎＸ－１００／Ｃ１０Ｈ２１ＯＨ／Ｈ２Ｏ体系状液晶中，以饱和Ｎａ２Ｃ２Ｏ４水溶液代替给分水制备水溶性超微粒子材料Ｎａ２Ｃ２Ｏ４，平均粒径约为６ｎｍ。     

纤维素调控合成羟基磷灰石纳米带

本文通过氨水扩散共沉淀法,在可溶纤维素的调控作用下制备得到了纳米带状羟基磷灰石。在120℃下加热回流高浓度氯化钙溶液和纤维素,作为后续合成羟基磷灰石的原料溶液。随后将磷酸二氢钠溶液加入到含有溶解纤维素和Ca2+离子原料溶液中,通过氨水扩散来提高溶液的pH值,从而引发羟基磷灰石从溶液中析出,反应一段时间后,收集析出样品。对照实验样品在不加纤维素条件下反应收集得到。通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、原子力显微镜(AFM)、傅立叶变换红外仪(FT-IR)和X射线衍射仪(XRD)分析了纤维素对HA晶体形貌和晶体结构的影响。结果显示,实验合成了超薄纳米带状羟基磷灰石晶体,该晶体的合成可能是因为纤维素分子杂化到了HA的晶体中。     

可降解聚乳酸/羟基磷灰石杂化材料Ⅰ.纳米羟基磷灰石的合成

可降解聚乳酸/羟基磷灰石杂化材料Ⅰ.纳米羟基磷灰石的合成;化学共沉淀;共沸蒸馏;纳米羟基磷灰石;表面处理剂     

Triton X－100／C_（10）H_（21）OH／H_2O体系层状液晶中超微粒子材料CdS的合成

ＴｒｉｔｏｎＸ－１００／Ｃ_（１０）Ｈ_（２１）ＯＨ／Ｈ_２Ｏ体系层状液晶中超微粒子材料ＣｄＳ的合成沈明，郭荣，严鹏权，于卫里（扬州大学师范学院化学系扬州２２５００２）关键词超微粒子，层状液晶，表面活性剂，ＴｒｉｔｏｎＸ－１００，ＣｄＳ超微粒子是指粒径?..     

纳米羟基磷灰石/溶菌酶复合体的原位合成及酶活性研究

利用一种新的溶菌酶的组装方法, 湿法合成原位组装了羟基磷灰石/溶菌酶复合体, 对组装体进行多种表征并与浸渍组装的方法进行了对比.     

原位复合法制备层状结构的壳聚糖/羟基磷灰石纳米材料

用原位复合法制备了高性能的壳聚糖/羟基磷灰石(CS/HA)纳米复合材料.用预先沉积的壳聚糖膜将含有羟基磷灰石前驱体的壳聚糖溶液与凝固液隔离,同时控制壳聚糖沉积与羟基磷灰石前驱体转化为羟基磷灰石的过程,使其缓慢且有序地进行.当pH值改变时,质子化的壳聚糖分子链在负电层诱导下有序沉积并形成层状结构与羟基磷灰石原位生成CS/HA,并实现二者分子级复合.XRD和TEM测试证实原位生成的磷酸盐是羟基磷灰石,且其颗粒长约为100nm,宽30～50nm.SEM结果表明,用原位复合法制备的材料具有层状结构,CS/HA(质量比100/5)纳米复合材料弯曲强度高达86MPa,比松质骨的高3～4倍,相当于密质骨的1/2,有望用于可承重部位的组织修复材料.     

Triton X-100体系层状液晶结构及其润滑性能

用小角X射线衍射和2HNMR方法测定TritonX 100/n C10H21OH/H2O体系层状液晶的结构.用高速环块磨损验机考察了不同组分含量的层状液晶对铝合金 钢磨擦副润滑性能的影响.结果表明:随着水含量的增加,层液晶两亲双层中分子的有序度降低,润滑效果也降低;随着Tri tonX 100含量增加,层状液晶两亲双层中分子有序度增加,其润滑效果提高.     

DODMAC/n-C10H21OH/10%n-C10H22/H2O体系溶致液晶的2HNMR和SAXS研究

50℃下, 测定了双十八烷基二甲基氯化铵DODMAC/n-C10H21OH/10%n-C10H22/H2O四元体系相图, 确定了液晶区域范围, 用2H NMR方法, 并辅以偏光显微镜照片, 确定了液晶为反相六角状, 用SAXS求出了液晶晶面间距, 确定了晶面间距d1与含水量fw/(1-fw)之间的线性关系, 并求得圆柱形聚集体的直径ds=4.035nm.     

辛烷基苯酚聚氧乙烯醚与正癸醇层状液晶的有序性及层状结构

Order character and lamellar structure of TritonX 100/n C10H21OH/H2O lamellar liquid crystal were investigated. Partial phase diagram of TritonX 100/C10H21OH/H2O was measured at 25℃ by the polarizing microscope, and lamellar structure of the lamellar liquid crystal was verified by the 2H NMR spectra. The ESR spin probe method was used to detect the changes in the lamellar liquid crystal. A stearic acid, 5 doxylstearic acid, was used as the spin probe. The values of hyperfine coupling constant and order parameter of lamellar liquid crystal in the phase diagram were calculated. The values of the hyperfine coupling constant with different composition were almost unchanged. It indicates that the micropolarity of the lamellar liquid crystal is very similar. The order parameter decreases with the increasing water content in lamellar liquid crystal. It can be explained by considering that: First, though the penetration is determined at the given weight ratio of C10H21OH to TritonX 100, the absolute water content penetrated into the amphiphile bilayer increases with the increasing of the water content. Second, the thickness of the solvent also increases, which makes the force between layers weaker. The results also showed that order parameter of lamellar liquid crystal increased with TritonX 100 content, which may be explained from the fact that the water content penetrated into the amphiphile bilayer decreases relatively and the molecules in the amphiphile bilayer are made tighten. The interlayer spacing of lamellar liquid crystal was determined by small angle X ray diffraction. The penetration ratio of water in the lamellar liquid crystal was calculated. It was about 50%.     

Fluorescence Quenching of Anthracene by N,N-Diethylaniline and Phenothiazine in Triton X-100/n-C10H21OH/H2O Microemulsion

IntroductionDuring the last decade,microemulsions haveplayed important roles in the development of bio-logical,material,environmental and other relatedfields[1— 4] .Although photo- induced electron trans-fer processes are of considerable interest in biologyand chemistry,up to now,most of the studies ofthe photo- induced electron transfer in micelle andinverse micelle have been limited to one- or two-component water/surfactant systems[5] .As theirextensions to microemulsion,only a very limited…     

油酸钠/水/十六烷/三丙烯酸季戊四醇酯体系层状 液晶的聚合

将十六烷增溶于油酸钠(NaOL)/水体系层状液晶的油层,共聚单体三丙烯酸季戊四醇酯(PETA)增溶于油酸钠/水体系层状液晶的两亲双层。72℃下,以增容于油层中的十六烷作为阻隔。在层状液晶同一两新双层内的两新分子油酸钠与共聚单体PETA之间进行共聚,得到了具有层状结构、并具有较好表面活性的共聚物。     

Synthesis and Crystal Structure of [C10N2H10]2[P2Mo5O21(OH)2]·2H2O

The crystal structure of [C₁₀N₂H₁₀]₂[P₂Mo₅O₂₁(OH)₂] · 2H₂O, contains the heteropolyanion, [P₂Mo₅O₂₁(OH)₂]^4—, together with diprotonated 4, 4′‐bipyridine. The heteropolyanion is built up from five MoO₆ octahedra sharing four common edges and one common corner, capped by two PO₃(OH) tetrahedra. The structure is stabilized by hydrogen bonds involving the hydrogen atoms of the 4, 4′‐bipyridine, water molecules and the oxygen atoms of the pentamolybdatobisphosphate. This is the first example that this kind of cluster could be isolated in the presence of a poly‐functional aromatic molecule ion. Crystal data: triclinic, P1¯ (No. 2), a = 9.983(2)Å, b = 11.269(2)Å, c = 17.604(4)Å, α = 73.50(3)°, β = 84.07(3)°, γ = 67.96(3)°; V = 1760.0(6)ų; Z = 2; R₁ = 0.037 and wR₂ = 0.081, for 9138 reflections [I > 2σ(I)].     

Lubrication of the mixed system of Triton X-100/n-C10H21OH/H2O lamellar liquid crystal and ZnS nanoparticles

ZnS nanoparticles could be synthesized, when two kinds of Triton X-100/n-C₁₀H₂₁OH/H₂O lamellar liquid crystal were mixed, in which Zn(CH₃COO)₂ and Na₂S were dissolved in the solvent layer, respectively. The size of ZnS nanoparticles was about 10 nm and limited by the thickness of the solvent layer of the lamellar liquid crystal. The lubrication properties of the mixed system of Triton X-100/n-C₁₀H₂₁OH/H₂O lamellar liquid crystal and ZnS nanoparticles were determined. The results showed that the presence of ZnS nanoparticles could improve the anti-wear ability of the Triton X-100/n-C₁₀H₂₁OH/H₂O lamellar liquid crystal and decrease its friction coefficient.     

层状液晶中KCl超微粒子的制备

利用溶剂在层状液晶中的渗透性，和层状液晶中溶剂厚度的限定性，在TritonX-100／C10H21OH／H2O体系层状液晶中，以24．0％（质量分数）KCl水溶液代替组分水，制备水溶性超微粒子材料KCl，粒径大小约为4～6nm．