Macromolecular Rapid Communications

Cover image for Vol. 30 Issue 24

December 16, 2009

Volume 30, Issue 24

Pages 2063–2146

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. Macromol. Rapid Commun. 24/2009

      Xu Han, Xiwen Chen, Terry Gordon and Steven Holdcroft

      Version of Record online: 15 DEC 2009 | DOI: 10.1002/marc.200990062

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      Front Cover: Photoluminescent patterns of polyfluorenes with feature sizes of 20 µm and less are achieved by direct thermal lithography. The patterning of a series of polyfluorenes by exposure to a NIR laser at scan speeds approaching 1 ms−1 is reported. This strategy, which combines thermal lithography and functionalized polymers, provides a route for the rapid patterning of π-conjugated polymers. Further details can be found in the article by X. Han, X. Chen, T. Gordon, and S. Holdcroft*on page 2089.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
  3. Feature Article

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. Covalently Scaffolded Inter-π-System Orientations in π-Conjugated Polymers and Small Molecule Models (pages 2067–2078)

      Rhett C. Smith

      Version of Record online: 3 NOV 2009 | DOI: 10.1002/marc.200900387

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      Thin films of π-conjugated polymers are elements of emerging plastic electronics technologies. The distance between π-systems and their relative orientation dictate the photophysical properties of such materials. This paper reviews polymers and models featuring specific, covalently enforced inter-π-system interactions, and the effect on optoelectronic properties.

  4. Communications

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. Steric Coordination Control of Interchain Interactions in Conducting Metallopolymers (pages 2079–2083)

      Susan He, Ashlyn E. Dennis and Rhett C. Smith

      Version of Record online: 2 OCT 2009 | DOI: 10.1002/marc.200900388

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      The strategic placement of sterically encumbered units about the 2,2′-bipyridyl metal-binding site in a poly(p-phenylene vinylene) derivative prevents coordinative crosslinking upon metallation. This endows the resultant metallopolymers with substantially improved solubility for subsequent processing versus an analogous polymer lacking steric coordination control.

    2. Transparent and Conductive Polyethylene Oxide Film by the Introduction of Individualized Single-Walled Carbon Nanotubes (pages 2084–2088)

      Yong Chae Jung, Hiroyuki Muramatsu, Ki Chul Park, Daisuke Shimamoto, Jin Hee Kim, Takuya Hayashi, Sung Moo Song, Yoong Ahm Kim, Morinobu Endo and Mildred S. Dresselhaus

      Version of Record online: 19 OCT 2009 | DOI: 10.1002/marc.200900446

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      An optically transparent and electrically conductive polyethylene oxide (PEO) film is fabricated by the introduction of individualized single-walled carbon nanotubes (SWNTs). The incorporated SWNTs in the PEO film retain their intrinsic electronic and optical properties and, in addition, the intrinsic properties of the polymer matrix are kept. The diameter-selectively individualized SWNTs provide high transmittance as well as good electrical conductivity in PEO films.

    3. Enhancement of Oxidative Stability of Polyfluorenes for Direct Thermal Lithography (pages 2089–2095)

      Xu Han, Xiwen Chen, Terry Gordon and Steven Holdcroft

      Version of Record online: 19 OCT 2009 | DOI: 10.1002/marc.200900526

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      Thermally reactive, fluorene-based polymers are investigated for patterning by NIR direct thermal lithography. The presence of phenyl groups at the 9-site carbon was found necessary to enhance oxidative stability, eliminate fluorenone formation, and enhance the colour purity of the patterned materials.

    4. Synthesis and Fluorescent Properties of Biodegradable Hyperbranched Poly(amido amine)s (pages 2096–2101)

      Wen Yang and Cai-Yuan Pan

      Version of Record online: 4 NOV 2009 | DOI: 10.1002/marc.200900482

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      A biodegradable hyperbranched PAMAM, which was easily prepared by one-pot Michael addition polymerization, can emit bright wide-band fluorescence dependent upon the exitation wavelength. The linear PAMAM did not emit fluorescence. A study on its potential applications in bioimaging and biosensors is in progress.

    5. Melt Dispersion and Electrospinning of Non-Functionalized Multiwalled Carbon Nanotubes in Thermoplastic Polyurethane (pages 2102–2106)

      Matthew T. Hunley, Petra Pötschke and Timothy E. Long

      Version of Record online: 1 SEP 2009 | DOI: 10.1002/marc.200900393

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      Thermoplastic polyurethane/non-functionalized multiwalled carbon nanotube (MWCNT) nanocomposites were fabricated through an efficient melt-compounding technique. The nanocomposites were electrospun to prepare nanoscale fibers with percolated, highly aligned MWCNTs, with carbon nanotube loadings up to 10wt.-%. The efficient melt mixing and electrospinning eliminated the need for extensive surface functionalization or sonication of the nanotubes.

    6. Synthesis of Oligothiophene-Layered Polymers (pages 2107–2111)

      Yasuhiro Morisaki, Jonas Alves Fernandes and Yoshiki Chujo

      Version of Record online: 16 SEP 2009 | DOI: 10.1002/marc.200900439

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      The synthesis of bithiophene- and quaterthiophene-layered polymers based on a xanthene unit by an oxidative coupling reaction is reported. Their synthetic method, characterization, and properties are described in detail.

    7. Synthesis of POSS-Functionalized Polyisobutylene via Direct Initiation (pages 2112–2115)

      Serap Hayat Soytaş, Goy Teck Lim and Judit E. Puskas

      Version of Record online: 3 NOV 2009 | DOI: 10.1002/marc.200900493

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      A novel and convenient method for the synthesis of POSS-functionalized polyisobutylene has been developed. This one-step functionalization was achieved by the use of an epoxy-functional POSS as an initiator in conjunction with TiCl4 for the carbocationic polymerization of isobutylene.

    8. A Facile Route to Prepare Organic/Inorganic Hybrid Nanomaterials by ‘Click Chemistry’ (pages 2116–2120)

      Xunyu Lu, Fu Sun, Jing Wang, Jianfeng Zhong and Qingzhi Dong

      Version of Record online: 8 SEP 2009 | DOI: 10.1002/marc.200900356

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      Alkyne-functionalized silica nanoparticles are synthesized by a simple co-condensation strategy. These particles are direct solid supports that can react with azide-terminated polymers by ‘click chemistry’. The facile preparation of azide-terminated polymers will extend the application of ‘click chemistry’ in the surface modification of silica nanoparticles.

    9. The Self-Assembled Structure of the Diblock Copolymer PCL-b-P4VP Transforms Upon Competitive Interactions with Octaphenol Polyhedral Oligomeric Silsesquioxane (pages 2121–2127)

      Chu-Hua Lu, Shiao-Wei Kuo, Wen-Teng Chang and Feng-Chih Chang

      Version of Record online: 11 SEP 2009 | DOI: 10.1002/marc.200900437

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      Self-assembled morphologies of an immiscible PCL-b-P4VP diblock copolymer change as a result of competitive hydrogen-bonding interactions with added octaphenol polyhedral oligomeric silsesquioxane (OP-POSS), as evidenced from TEM images, DSC cooling curves, and FT-IR spectroscopic analyses.

    10. Highly Effective and Green Catalytic Approach Toward α,ω-Dihydroxy-Telechelic Poly(trimethylenecarbonate) (pages 2128–2135)

      Marion Helou, Olivier Miserque, Jean-Michel Brusson, Jean-François Carpentier and Sophie M. Guillaume

      Version of Record online: 3 SEP 2009 | DOI: 10.1002/marc.200900498

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      α,ω-Dihydroxy-telechelic poly(trimethylene carbonate), HO−PTMC−OH, is synthesized via controlled “immortal” ring-opening polymerization under mild conditions using a catalyst precursor in the presence of an excess of diol acting both as co-initiator and chain transfer agent, and also upon hydrogenolysis of HO−PTMC−OCH2Ph using Pd/charcoal. HO−poly(lactide)−OH and PTMC−OH3 are prepared from a diol or a triol, resulting in a linear or star α,ω-hydroxy functionalized polyester or polycarbonate.

    11. Non-Fouling Character of Poly[2-(methacryloyloxy)ethyl Phosphorylcholine]-Modified Gold Surfaces Fabricated by the ‘Grafting to’ Method: Comparison of its Protein Resistance with Poly(ethylene glycol)-Modified Gold Surfaces (pages 2136–2140)

      Keitaro Yoshimoto, Takumi Hirase, Jeppe Madsen, Steven P. Armes and Yukio Nagasaki

      Version of Record online: 16 OCT 2009 | DOI: 10.1002/marc.200900484

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      Poly(2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC)-modified gold surfaces have been prepared using novel monosulfanyl-ended semi-telechelic PMPC and their performance for protein resistance compared to that of the monosulfanyl-ended poly(ethylene glycol) [PEG]-modified gold surfaces.

    12. Highly Asymmetric Phase Diagram of a Poly(1,2-octylene oxide)–Poly(ethylene oxide) Diblock Copolymer System Comprising a Brush-Like Poly(1,2-octylene oxide) Block (pages 2141–2146)

      Ian W. Hamley, Ben M. D. O'Driscoll, Gudrun Lotze, Claire Moulton, Jürgen Allgaier and Henrich Frielinghaus

      Version of Record online: 4 NOV 2009 | DOI: 10.1002/marc.200900474

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      The highly asymmetric phase diagram of a series of poly(1,2-octylene oxide)–poly-(ethylene oxide) (POO–PEO) in the melt diblock copolymers is determined by small-angle X-ray scattering. The phase diagram results from the strong conformational asymmetry caused by packing constraints of the side chains in POO. In addition, hexagonal and gyroid phases are observed in nearly symmetric diblock blends.

  5. Back Cover

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. Macromol. Rapid Commun. 24/2009

      Wen Yang and Cai-Yuan Pan

      Version of Record online: 15 DEC 2009 | DOI: 10.1002/marc.200990064

      Thumbnail image of graphical abstract

      Back Cover: Biodegradable hyperbranched PAMAMs can emit bright and colorful fluorescence, even containing no classical fluorophores, and they are stimuli-cleavable due to abundant disulfide linkages in their backbones. The synthesis is quite easy via one-pot polymerization. This may be a new direction in developing fluorescent biomaterials. Further details can be found in the article by W. Yang and C.-Y. Pan*on page 2096.

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