06-05-2013 | Wei Zhang; Jürgen Allgaier; Reiner Zorn; Sabine Willbold, Macromolecules, 2013

In this work, 1H NMR was used to examine the anionic copolymerization kinetics of ethylene oxide and 1,2-butylene oxide. The in situ NMR technique allows monitoring the concentration profiles of both monomers simultaneously. A series of polymerization experiments at different monomer and ...

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06-05-2013 | Takahiro Fukumaru; Tsuyohiko Fujigaya; Naotoshi Nakashima, Macromolecules, 2013

Polybenzoxazole (PBO) reinforced with carbon nanotubes (CNTs) is of great interest in the field of polymer composites because PBO and CNTs possess the highest-level mechanical properties among polymers and filler materials, respectively. However, the insolubility of PBO and the CNTs makes it ...

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03-05-2013 | Qi Zhong; Ezzeldin Metwalli; Monika Rawolle; Gunar Kaune; Achille M. Bivigou-Koumba; André Laschewsky; Christine M. ..., Macromolecules, 2013

Thin thermoresponsive films of the triblock copolymer polystyrene-block-poly(methoxydiethylene glycol acrylate)-block-polystyrene (P(S-b-MDEGA-b-S)) are investigated on silicon substrates. By spin-coating, homogeneous and smooth films are prepared for a range of film thicknesses from 6 to 82 ...

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01-05-2013 | Zhilong Su; Bing Yu; Xuesong Jiang; Jie Yin, Macromolecules, 2013

We herein demonstrated a novel multiresponsive fluorescent nanorod based on C60, which is fabricated through the versatile coassembly of fullerene C60 and anthracene-ended hyperbranched poly(ether amine) (AN-hPEA). The supramolecular nanorods (C60@AN-hPEA) can be further cross-linked through ...

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29-04-2013 | Sebastian Lages; Günter Goerigk; Klaus Huber, Macromolecules, 2013

Bivalent lead ions as representative main group heavy metal cations form specific interactions with the negatively charged COO– residues of sodium polyacrylate chains in dilute aqueous solution. The interactions eventually lead to aggregation and precipitation of sodium polyacrylate chains ...

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25-04-2013 | Khalid Chiad; Matthias Grill; Martin Baumgarten; Markus Klapper; Klaus Müllen, Macromolecules, 2013

The existence of a dendritic box in polyphenylene dendrimers is demonstrated by isothermal titration calorimetry (ITC). The thermodynamic parameters of the uptake process of a variety of small guest molecules into the dendrimers are measured. ITC revealed that for dendrimers with an unpolar ...

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23-04-2013 | Richard Vendamme; Walter Eevers, Macromolecules, 2013

This article describes the synthesis of functional pressure-sensitive adhesives (PSA) derived from plant oils and highlights how the viscoelastic and adhesion properties can be tailored by incorporation of the cereal-based monomer 1,4:3,6-dianhydro-d-glucitol (isosorbide). At first, the ...

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19-04-2013 | Solomon H. Reisberg; Harry J. Hurley; Robert T. Mathers; Joseph M. Tanski; Yutan D. Y. L. Getzler, Macromolecules, 2013

The complex (tBu-SalAmEE)Al (tBu-SalAmEEH3 = N,N-bis(3,5-di-tert-butyl-2-hydroxybenzyl)-2-(2-aminoethoxy)ethanol, 1) catalyzes the ring-expansion polymerization of lactide to form cyclic poly(lactide) (cPLA). The X-ray structure of 1 was determined, its polymerization kinetics were examined ...

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18-04-2013 | Lucie Grebikova; Plinio Maroni; Laura Muresan; Baozhong Zhang; A. Dieter Schlüter; Michal Borkovec, Macromolecules, 2013

Polymethacrylate-based amino-terminated dendronized polymers up to generation 5 were adsorbed on mica, hydrophobized mica, and gold and studied with the atomic force microscope (AFM). These studies were carried out in a mildly acidic electrolyte solution where these polymers are fully ...

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16-04-2013 | O. Werzer; R. Resel, Macromolecules, 2013

The properties of regioregular poly(3-hexylthiophene) (P3HT) thin layers prepared on silica surfaces are investigated by X-ray reflectivity measurements and a model-independent fitting approach. As P3HT is a semicrystalline polymer Bragg peaks, corresponding to the repeating distance of ...

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