Cylinders having rough surface of nanometer size in blend like spherical polymer particles

Abstract

The method of direct energy transfer was used to study the internal morphology of colloid particles prepared by nonaqueous dispersion polymerization. The particles contained 97 mole-% poly(methy1 methacrylate) and 3 mole-% poly(isobuty1ene). Phenanthrene and anthracene were used as donor and acceptor.The results were interpreted in terms of a cross-over phenomenon in restricted geometries. A new scheme of the morphology is suggested for the colloid particles. Zylinder mit rauher Oberflache im Nanometerbereich in kugelformigen Partikeln von PolymermischungenMit der Methode des direkten Energietransfers wurde die innere Morphologie von durch nichtwakige Dispersionspolymerisation hergestellten kolloidalen Teilchen untersucht. Die Teilchen enthielten 97 Mol-% Poly(methylmethacry1at) und 3 Mol-Yo Poly(isobuty1en). Als Donor und Acceptor wurden Phenanthren beziehungsweise Anthracen eingesetzt. Die Ergebnisse wurden auf Basis eines Crossovereffektes mit eingeschrankter Geometrie interpretiert. Ein neues Schema fur die Morphologie der Kolloidteilchen wird vorgeschlagen.

Polymer/silica nanoscale hybrids through sol–gel method involving emulsion polymers. I. Morphology of poly(butyl methacrylate)/SiO2

“…It is natural that the film‐formation process of polymer latex is related to that of the hybrids. Some authors18–20 suggested that the polymer latex film‐formation process consisted of four distinct stages separated by three transitions. The first stage corresponds to the wet initial state.…”

Drying of heterogeneous hydrogels formed with various water contents: A photon transmission study

“…The estimated value of D predicts that holes show very slow shrinkage during the drying process. In other words, motion of lattice point in a drying gel is as slow as diffusing of a chain in bulk above the glass transition 20, 21. Most probably when the gel dries, it goes through its glass transition point.…”

Molecular Orientation Study of the Drying of Latex in Real Time Using the Variable-Angle Attenuated Total Reflectance Technique

“…However, the mechanism of the transform ation from dispersed latex particles to homogeneous lm is not well understood. Recent publications [1][2][3] suggest four distinct stages separated by three transitions (Fig. 1).…”