The colloidal stability was attributed to the presence of a hydrated CMC layer around the particles. This work reports the formation of complexes between polyelectrolytes and oppositely charged surfactants solutions, and a new procedure to synthesize stable polymeric particles, where the polymerization takes place in the complex. The mixtures behavior between carboxymethylcellulose (CMC) and cetyltrimethylammonium bromide (CTAB), and between chitosan (CH) and sodium dodecyl sulfate (SDS) was investigated in the diluted range at the liquid-air interface by means of surface tension, and in the bulk solution by turbidity and conductivity measurements. The present procedure brings the advantage of synthesizing and stabilizing particles with functional groups on the surface in a one-step method using very small amounts of surfactant, a friendly condition for the environment. The hybrid particles were characterized by zeta potential, light scattering measurements and scanning electron microscopy. The synthesis of polystyrene or poly(methyl methacrylate) was carried out by emulsion polymerization in the critical aggregation concentration (cac) of the CMC/CTAB system.
Hybrid Particles from Polysaccharides and Synthetic Polymers. Synthesis and Characterization
|Формат:|| Страниц 72|
Книга по Требованию
Закон независимого расщепления признаков, известный теперь как закон Менделя, положил начало новому направлению в биологии – менделизму, ставшему фундаментом генетики. Сам Мендель, после неудачных попыток получить аналогичные результаты при скрещивании других растений, прекратил свои опыты. До конца жизни он занимался пчеловодством, садоводством, вел метеорологические наблюдения. Умер Мендель 6 января 1884. Среди трудов ученого – Автобиография (Gregorii Me del au obiographia iuve ilis, 1850) и ряд статей, включая Эксперименты по гибридизации растений (Versuche ber Pfla ze hybride , в «Трудах Брюннского общества естествоиспытателей», т. 4, 1866). Список литературы Мендель Г. Опыты над растительными гибридами. М., 1965 Тимофеев-Ресовский Н.В. О Менделе. – Бюллетень Московского общества испытателей природы, 1965, №4 Мендель Г., Ноден Ш., Сажрэ О. Избранные работы. М., 1968
|Non-traditional Gilding Techniques in Gilded Objects Conservation. Research into loss compensation in water-gilded surfaces using synthetic polymers Книга по Требованию Dr. M.S. |
The final testing phase aimed to determine tendency in aging behaviour of the gilded surfaces using synthetic materials.
|New Combinations for Contemporary Living Hybrid Interiors: Thames&Hudson Francesco A. |
The idiosyncratic experiments on the pages of this book provide a rich source of inspiration to those seeking to break away from the overworked catalogue of formulas used in the field of interior design.
|Education Reform at the "Edge of Chaos". Constructing ETCH (Education Theory Complexity Hybrid) for an optimal learning environment Книга по Требованию Irene C. |
ETCH creates a blueprint of fundamental laws, that when applied to the field of education, provides a framework for school structure design, that "emerges" into a learning environment, that in turn stimulates holistic growth in every student.
|Symbolic Analysis as a Basis for Program Comprehension. Symbolic analysis introduces symbols as atomistic hybrid objects, which create interpretations with each other to be used for program comprehension Книга по Требованию Erkki L. |
Research on program comprehension is important, because the amount of source code in mission-critical applications is increasing world-wide.
|Advanced Application of the Boundary Element Method. Applied to the Analysis of Polymers Книга по Требованию Jiangwei W. |
A mixed method for quasi-static viscoelasticity was proposed.
|Applications of Polyvalent Carbohydrate Display on Viral Particles. Lessons in Nanotechnology Книга по Требованию Eiton K. |
Furthermore, enzymatic synthesis of polysaccharides directly on the surface of CPMV offers facile construction and purification of cell targeting viruses.
|TCP Performance. in hybrid Mobile Ad Hoc Networks Книга по Требованию |
To further complicate the situation the Transmission Control Protocol (TCP) is designed for wired networks, in a MANET with different link and route characteristics, as multihop and frequent packet losses, the performance of current TCP proposals drop considerably.
|Photoluminescence properties of heat-treated silicon-based polymers. Promising materials for LED applications Книга по Требованию Ilaria M. |
In the present work, a new approach to obtain homogeneous, thermally stable and formable photoluminescent materials for LED applications is presented, starting from silicon-based polymers and through heat-treatment at low temperatures (200-700 °C).
|Population genetic processes of a Populus hybrid complex. spatially explicit studies on gene flow of P. nigra and P. x canadensis as a basis for conservation measures Книга по Требованию Georg R. |
Parentage analyses of progeny enabled the quantification of pollen and seed-mediated gene flow.
|Hybrid Wind-Diesel Power Plants. Modeling and Analysis Книга по Требованию |
This book was especially designed for those interested in modeling power systems, power electronics, electrical machines, renewable wind-diesel energy systems, and controllers applied to power systems.
|Interactive Evolutionary Algorithms for Multi-Objective Optimization. Design and Validation of a Hybrid Interactive Reference Point Method Книга по Требованию |
Subsequently, the user has the difficult task to pick one solution.
|Credit Derivatives. Pricing and Modelling of Credit Portfolio and Credit Hybrid Derivatives Книга по Требованию |
It allows in particular to consistently model the market of single-tranche CDOs and the term structure of interest-rates.
|Ruthenium-Catalyzed Ionic Hydrogenation Reactions. Mechanistic Studies and Synthetic Applications Книга по Требованию Hairong G. |
This information should be useful to industrial scientists who are seeking chemoselective and stereoselective hydrogenation processes, as well as to academic researchers who are interested in reaction mechanisms and catalyst design.
|DEVELOPMENT OF OXYGENATED HYDROCARBON-BASED CO2- SOLUBLE POLYMERS. Using CO2 as a Green Solvent Книга по Требованию Lei H. |
Without concerning on the cost and the environmental persistence like fluorinated materials, the inexpensive and environmentally benign materials would significantly enhance the viability of CO2-based technology.
|Heterojunctions on Titanium Oxide Nano Particles. Heterojunctions of Zinc Selenide and Zinc Sulfide on Titanium Oxide Nano Particles and Their Photocatalyses Книга по Требованию Tsung-Hsiang S. |
It would not hinder titanium oxide absorption and preserve the role of fluorine and nitrogen co-doping.
|Hybrid Energy Storage Systems. An Ultracapacitor-Battery Energy Storage System for Hybrid Electric Vehicles Книга по Требованию Adam S. |
This work studies two different methods for implementation on a hybrid electric vehicle and presents performance data for a variety of simulations.
|A Passion for Organic Synthesis. New Nazarov Chemistry, Total Synthesis of Highly Unsaturated Pyrone Polyketides, and Synthetic Studies toward Haouamines Книга по Требованию |
This book features an in-depth account on methodology development and total synthesis of three challenging families of natural products.
|Area Coverage in Hybrid Wireless Sensor Networks. Issues and Pragmatic Solutions Книга по Требованию Nadeem A. |
This book addresses the problem of area coverage estimation and enhancement in its entirety from deployment to the operational stage of network.
|Molecularly Imprinted Polymers for QCM-based Sensors. Tailor made MIP on a gravimetric device for iprodine sensing Книга по Требованию Mohammad A.K. |
This work is concerned with a detailed examination of the preparation and properties of molecularly imprinted polymers (MIPs) designed for use on a quartz crystal microbalance (QCM) device for the detection of iprodione, a fungicide widely used in viticulture.
|Synthesis and biological testing of 1-adamantyl derivatives. Different synthetic methods and biological evaluation of adamantane containing derivatives Книга по Требованию Ebtehal A. |
In addition, 1,2,4-triazole and 1,3,4-thiadiazole were reported to constitute the pharmacologically active moiety of several compounds.