Macromolecular Chemistry and Physics
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Materials Science Weekly Newsletter
Recently Published Articles
- Contents: Macromol. Chem. Phys. 14/2014 (pages 1355–1357)
Article first published online: 18 JUL 2014 | DOI: 10.1002/macp.201470047
- You have free access to this contentMacromol. Chem. Phys. 14/2014 (page 1353)
Jiahua Zhu, Liwen Mu, Long Chen, Yijun Shi, Huaiyuan Wang, Xin Feng and Xiaohua Lu
Article first published online: 18 JUL 2014 | DOI: 10.1002/macp.201470045
Front Cover: n-Octadecane phosphate, a self-assembling molecule, is synthesized and used to modify the surface of carbon nanofibers (CNFs). At room temperature, the mechanical properties of a polyimide incorporating these treated CNFs are remarkably improved over those of a similar composite incorporating untreated fibers. The tribological properties are also improved. This is shown to be related to the better dispersion of the treated fibers and the superior interfacial adhesion introduced. Further details can be found in the article by J. Zhu,* L. Mu, L. Chen, Y. Shi, H. Wang, X. Feng,* and X. Lu on page 1407.
- Synthesis and Characterization of 1-Vinylimidazolium Alkyl Sulfate Polymeric Ionic Liquids
Simon Gallagher, Bartosz Ziolkowski, Eoin Fox, Kevin J. Fraser and Dermot Diamond
Article first published online: 18 JUL 2014 | DOI: 10.1002/macp.201400300
Three ionic liquid monomers are prepared using a halide-free route under ambient conditions by the quaternization reaction of 1-vinylimidazoles with alkyl sulfates. Through free-radical polymerization, polymeric ionic-liquid films are produced with satisfactory thermal stability of up to 340 °C and mechanical storage moduli value as high as 4.64 × 106 Pa.
- Does the Glass Transition of Polymers Change Upon 3D Confinement?
Daniel E. Martínez-Tong, Jing Cui, Michelina Soccio, Carolina García, Tiberio A. Ezquerra and Aurora Nogales
Article first published online: 17 JUL 2014 | DOI: 10.1002/macp.201400244
Polymer nanospheres exhibit an increase of the glass-transition temperature, with respect to its bulk value. This increase is explained by an entropy model, where the limited number of monomer units per particle induces a reduction of the possible configuration states of the polymer chains, responsible for the observed increase on Tg.