The growth of crops under plastic greenhouses : controlled environment agriculture = De groei van gewassen in plastickas...
Adsorption of polyelectrolytes at liquid-liquid interfaces and its effect on emulsification
In this study we have investigated the adsorption behaviour of a number of synthetic polyelectrolytes at the paraffin oil-water interface and the properties of paraffin oil-in-water emulsions stabilized by these polyelectrolytes.Polyacrylic acid (PAA), polymethacrylic acid (PMA) and the copolymers of the monomeric acids with their methyl esters (re...
Verbrandingsverschijnselen bij in plastic zakjes verpakte geplozen kaschrysanten
Schade aan kunststoffen door knaagdieren en bestrijdingsmiddelen hiertegen
Copolymers at a liquid-liquid interface and their retarding effect on mass transfer between both phases
In this study we have investigated the interfacial properties of several polyvinyl alcohol-acetate (PVA-Ac) copolymers, which only differ in the content and the intra-molecular distribution of their vinyl acetate monomers (VAc).In chapter I the relevant theoretical and experimental aspects of studies on polymer adsorption are reviewed. Because of e...
Interactions between adsorbed macromolecules : measurements on emulsions and liquid films
The aim of this study was to gain more insight into the factors, determining the inter- and intramolecular interactions between adsorbed macromolecules. To that end several experimental and theoretical approaches were followed, using well-defined systems. It was shown that these interactions could conveniently be studied by measurements on emulsion...
Inference of polymer adsorption from electrical double layer measurements : the silver iodide-polyvinyl alcohol system
The purpose of this study was to investigate how the double layer properties of charged particles are modified by the presence of adsorbed polymer molecules and to obtain information on the conformation of the polymer layer from the observed alterations in the double layer properties.In chapter 1. the use of double layer investigations to obtain in...
Advies over de verpakking van trosanjers in kunststoffolie
Flexible polymers at a solid-liquid interface : the adsorption of polyvinyl pyrrolidone onto silica
We undertook the present study in order to evaluate techniques which are devised to assess the comformations of adsorbed macromolecules. Since recent theories deal with these conformations, we also wanted to investigate to what extent these theories are supported by experimental data.
In chapter 1 we outline the scope of this study and we give reaso...
Landbouwplastic = Agricultural plastic
