Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 24, Issue 2
Florian Fürstenberg, Andrey A. Gurtovenko, Maxim Dolgushev and Alexander Blumen
Article first published online: 17 MAR 2015 | DOI: 10.1002/mats.201570004
Front Cover: The assumption of proportionality between the viscosity and radius-of-gyration branching indices, g' and g, is suggested on the basis of the proposal of Stockmayer and Fixmann and on the data of Kurata and Fukatsu as well as our own, rather than the exponential relation assuming the value of the branching exponent ε = 0.5, based on data of Zimm and Kilb. Further details can be found in the article by M. Netopilík on page 80.
Pascal Hebbeker, Felix A. Plamper and Stefanie Schneider
Article first published online: 17 MAR 2015 | DOI: 10.1002/mats.201570007
Back Cover: Star polymers with arms of two different homopolymers with a weak mutual attraction are investigated using Monte Carlo simulations, and the effect of the polymer architecture on the complexation behavior of the polymers is studied. The star architecture promotes an internal complexation, which is indicated by a reduction of the end-to-end distance of the polymer chains. Further details can be found in the article by Pascal Hebbeker, Felix A. Plamper, and Stefanie Schneider* on page 110.
Article first published online: 17 MAR 2015 | DOI: 10.1002/mats.201570005
Article first published online: 17 MAR 2015 | DOI: 10.1002/mats.201570006
Article first published online: 24 SEP 2014 | DOI: 10.1002/mats.201400047
Numerically calculated values of hydrodynamic branching index in dependence of the radius-of-gyration branching index, g, obey the h3 rule (data of Kurata and Fukatsu (1-4) and ours (straight line)) whereas the points of Zimm and Kilb deviate heavily (5). The value of the branching exponent equal to one appears therefore a plausible approximation.
Yang Zhou, Hong-Gang Xia, Xin-Ping Long, Xiang-Gui Xue and Wen Qian
Article first published online: 17 NOV 2014 | DOI: 10.1002/mats.201400072
Rich multicompartment micelles, such as raspberry-onion, helix-on-sphere, cage, ring, worm, bowl, can be formed by the self-assembly of the simplest linear ABC terpolymers in solutions, which is beyond the traditional understanding.
Erlita Mastan, Li Xi and Shiping Zhu
Article first published online: 7 JAN 2015 | DOI: 10.1002/mats.201400085
This paper discusses a fundamental question: how thick can a polymer layer grow to in surface-initiated ATRP (SI-ATRP)? or equivalently, what limits the growing of chains from surface? Two models developed from existing theories are compared to experiment trends from literature. It is shown that the current understanding of the mechanism behind SI-ATRP is still incomplete and requires further investigations.
Article first published online: 19 NOV 2014 | DOI: 10.1002/mats.201400063
Highly symmetrical, deterministic structures are important representatives for hyperbranched macromolecules; in particular, fractal structures cover a broad class of model polymeric systems. Here, polyamidoamine Vicsek fractals are studied by employing extensive molecular dynamics simulations along with the coarse-grained MARTINI force-field to unravel their structural and dynamic characteristics in dilute solution.
Article first published online: 2 JAN 2015 | DOI: 10.1002/mats.201400077
Polymeric systems consisting of two different weakly attractive components are investigated using Monte Carlo simulations, comparing various architectures. When arranged in a miktoarm star polymer, complexation is promoted compared to a linear block copolymer and a strictly alternating copolymer.
Article first published online: 15 DEC 2014 | DOI: 10.1002/mats.201400071
A Markovian model is proposed for the self-condensing vinyl polymerization (SCVP), to investigate the full distributions of chain lengths, degrees of branching, and molecular dimensions. When the polymer molecules are fractionated by the chain length, the universal curves for the degree of branching, and the molecular dimension, which are invariant during the course of polymerization were discovered.
Janusz Walasek and Radosław Jedynak
Article first published online: 8 JAN 2015 | DOI: 10.1002/mats.201400095
Numerical exact calculations show that for long chains the chain end-to-end probability can be Gaussian or non-Gaussian. It depends on the intensity of the orienting interactions inside the system of chains. That result verifies often accepted assumption that long chains are always Gaussian.
Jiří Škvor and Zbyšek Posel
Article first published online: 30 DEC 2014 | DOI: 10.1002/mats.201400079
Commensuration of lamellar morphology and simulation box is studied by means of dissipative particle dynamics. The lamellar spacing is found to be influenced by incommensurability effect even for large cubic simulation boxes. The adjusted box dimensions and components of pressure tensor are used for estimating the natural lamellar spacing for generally oriented lamellar planes.
Yousef Mohammadi, Hossein Ali Khonakdar, Seyed Hassan Jafari, Mohammad Reza Saeb, Mahdi Golriz, Udo Wagenknecht, Gert Heinrich, Stanislaw Sosnowski and Ryszard Szymanski
Article first published online: 7 JAN 2015 | DOI: 10.1002/mats.201400086
A detailed information on microstructural evolutions during reactive blending of PET and PEN based on fitting of results of numerical integration of differential equations and Kinetic Monte Carlo simulations to experimental data is reported. A broad understanding of transesterification kinetics which enables precise control of architecture of PET-PEN copolymer chains during reactive blending is provided.
Iván Zapata-González, Robin A. Hutchinson, Krzysztof Matyjaszewski, Enrique Saldívar-Guerra and José Ortiz-Cisneros
Article first published online: 17 MAR 2015 | DOI: 10.1002/mats.201400110
Copolymer Composition Deviations from Mayo–Lewis Conventional Free Radical Behavior in Nitroxide Mediated Copolymerization
Vol. 23, Issue 4, 245–265, Article first published online: 1 FEB 2014