Macromolecular Chemistry and Physics
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Recently Published Articles
- A Stimulus-Response and Self-Healing Supramolecular Polymer Gel Based on Host–Guest Interactions
Shuang Li, Hai-Yan Lu, Yun Shen and Chuan-Feng Chen
Article first published online: 17 MAY 2013 | DOI: 10.1002/macp.201300229
A supramolecular polymer gel is formed by host–guest interactions between a DB24C8-based bis(crown ether) and a copolymer containing the dibenzylammonium moiety. The gel shows both pH- and thermoresponsive behaviors, and excellent self-healing properties.
- Synthesis and Characterization of End-Functionalized Poly(3-butylthiophene) with Semifluoroalkyl Chains
Jusha Ma, Yanfang Geng, Kazuhito Hashimoto and Keisuke Tajima
Article first published online: 17 MAY 2013 | DOI: 10.1002/macp.201300081
End-fluoroalkylated poly(3-buthylthiophene) with a well-defined structure and narrow molecular-weight distribution is successfully synthesized by quasi-living polymerization and fluoroalkylation on one end only. This polymer may be useful for controlling the surface and interfacial properties of semiconducting thin films, as demonstrated by the decrease of the contact angle of the solutions.
- Control of Molecular Weight and Tacticity in Stereospecific Living Cationic Polymerization of α-Methylstyrene at 0 °C Using FeCl3-Based Initiators: Effect of Tacticity on Thermal Properties
Sanjib Banerjee, Tapas K. Paira and Tarun K. Mandal
Article first published online: 17 MAY 2013 | DOI: 10.1002/macp.201300092
Poly(α-methylstyrene)s of varying syndiotacticity (59.1% to 79.2%) and controllable molecular weight (Mn = 4300–32 100 g mol−1) with moderately narrow polydispersity indices (PDI ≈1.3) are synthesized via stereospecific living cationic polymerization of α-methylstyrene using an FeCl3-based initiating system at 0 °C. The glass-transition temperature and the thermal stability are found to depend on the syndiotacticity of the as-synthesized poly(α-methylstyrene).
- Attempted Inversion of Semiconducting Features of Platinum Polyyne Polymers: A New Approach for All-Polymer Solar Cells
Yuping Yuan, Tsuyoshi Michinobu, Jun Oguma, Takehito Kato and Kunihito Miyake
Article first published online: 16 MAY 2013 | DOI: 10.1002/macp.201300245
Formal cycloaddition–retro-electrocyclization reactions between platinum(II) polyyne polymers and tetracyanoethylene (TCNE) successfully lower the polymer energy levels. Application of these polymers to p-type semiconducting materials in bulk-heterojunction solar cells suggests that the p-type performance decreases by approximately 5 to 10 times. Moreover, when a TCNE-adducted polymer is employed as an n-type semiconducting material, the generation of weak photocurrent is achieved.
- Simultaneous SAXS and WAXS Study on the Guest Exchange Process of Syndiotactic Polystyrene: Crystalline Complex Formation with Triethylene Glycol Dimethyl Ether
Fumitoshi Kaneko, Naoki Seto, Keita Sasaki, Shinichi Sakurai and Tsuyoshi Kimura
Article first published online: 15 MAY 2013 | DOI: 10.1002/macp.201300001
Simultaneous small-angle and wide-angle X-ray scattering is applied to the guest-exchange phenomenon of syndiotactic-polystyrene cocrystals with chloroform on exposure to a liquid triethylene glycol dimethyl ether. It is found that a fully fledged guest-exchange process starts after an incubation time, accompanied by a significant expansion of the lamellar period and the occurrence of the ϵ cocrystal.