Random Copolymer as Polymeric Surfactant in Seed Emulsion Polymerization
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Abstract
An amphiphilic random copolymer was synthesized and applied as a surfactant in seed emulsion polymerization. The composition and structure of the copolymer were confirmed by Fourier transforms infrared spectroscopy (FTIR), 1H nuclear magnetic resonance spectroscopy (1H NMR), gel permeation chromatography (GPC) and differential scanning calorimetry (DSC). The effect of the copolymer content on the properties of latexes and their sizing properties was discussed. The average size, size distribution and stability of latexes were measured by quasi-elastic light scattering. The results suggest that the copolymer was a random copolymer, and displayed surface-active properties in water. The copolymer content affected strongly the properties of latex and its sizing performance. Monodisperse and nano-sized latex particles were obtained in the presence of 10.5 % copolymer. The thermal characteristics of latex films could be regulated by controlling the content of the copolymer. Adding an appropriate amount of the copolymer could reduce the surface tension of the latexes and promote their adsorption on the paper surface. Latex-treated paper showed a better water resistance and higher surface strength.
Kurzfassung
Es wurde ein amphiphiles statistisches Copolymer synthetisiert und als Tensid in der Keimemulsionspolymerisation verwendet. Die Zusammensetzung und Struktur des Copolymers wurden mittels Fourier-Transformations-Infrarot-Spektroskopie (FTIR), 1H-Kernresonanzspektroskopie (1H-NMR), Gelpermeationschromatographie (GPC) und dynamischer Differenzkalorimetrie (DSC) bestätigt. Der Einfluss des Polymergehalts auf die Eigenschaften der Latizes und ihre Schlichte-Eigenschaften wurde diskutiert. Die durchschnittliche Größe, die Größenverteilung und die Stabilität der Latizes wurden mittels der quasi-elastischen Lichtstreuung gemessen. Die Ergebnisse zeigen, dass das Copolymer ein statistisches Copolymer ist und in Wasser oberflächenaktive Eigenschaften besitzt. Monodisperse und nanogroße Latexpartikel wurden in Anwesenheit von 10,5 % Copolymer erhalten. Die thermischen Eigenschaften der Latexfilme konnten durch eine Kontrolle des Copolymergehaltes eingestellt werden. Durch Zugabe einer geeigneten Copolymermenge konnte die Oberflächenspannung der Latizes reduziert und ihre Adsorption an der Papieroberfläche begünstigt werden. Das mit Latex behandelte Papier zeigte eine bessere Wasserbeständigkeit und eine höhere Oberflächenfestigkeit.
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© 2015, Carl Hanser Publisher, Munich
Articles in the same Issue
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- Linear Polyethers as Additives for AOT-Based Microemulsions: Prediction of Percolation Temperature Changes Using Artificial Neural Networks
- Adsorption and Micellization Behavior of Mixtures of Amphiphilic Drugs with Small Amounts of Bile Salts
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- A Study of Relationship Between Oil-Water Interfacial Dilational Rheology and Oil Recovery of Alkaline Flooding
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- Novel Surfactants
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- The Role of Rhamnolipids in Coffee Ring Deposition and Influence of Metal Ions
- Synthesis
- Random Copolymer as Polymeric Surfactant in Seed Emulsion Polymerization
- Body Care
- Study of Tea Saponin Toothpaste
Articles in the same Issue
- Contents/Inhalt
- Contents
- Physical Chemistry
- Linear Polyethers as Additives for AOT-Based Microemulsions: Prediction of Percolation Temperature Changes Using Artificial Neural Networks
- Adsorption and Micellization Behavior of Mixtures of Amphiphilic Drugs with Small Amounts of Bile Salts
- Determination of Shape Transition Concentrations in Self-Assembled Surfactant Micelles by UV-Visible Spectrophotometry
- Synthesis and Colloidal-Chemical Properties of Surfactants Based on Alkyl Amines and Propylene Oxide
- A Study of Relationship Between Oil-Water Interfacial Dilational Rheology and Oil Recovery of Alkaline Flooding
- Mizellar Catalysis
- Best Combination of Promoter and Micellar Catalyst for Room Temperature Rapid Conversion of D-Lyxose to D-Lyxonic Acid in Aqueous Medium
- Novel Surfactants
- Surface and Fluorescence Studies of Bis-Sulfosuccinate Anionic Gemini Surfactants Derived from Dodecanol Using Different Flexible Methylene Chains as Spacers
- The Role of Rhamnolipids in Coffee Ring Deposition and Influence of Metal Ions
- Synthesis
- Random Copolymer as Polymeric Surfactant in Seed Emulsion Polymerization
- Body Care
- Study of Tea Saponin Toothpaste