Journal of Polymer Science Part B: Polymer Physics

Cover image for Vol. 50 Issue 19

1 October 2012

Volume 50, Issue 19

Pages i–ii, 1329–1393

  1. Cover Image

    1. Top of page
    2. Cover Image
    3. Reviews
    4. Communications
    5. Full Papers
    1. You have free access to this content
      Cover Image, Volume 50, Issue 19 (pages i–ii)

      Version of Record online: 28 AUG 2012 | DOI: 10.1002/polb.23162

      Thumbnail image of graphical abstract

      High aspect ratio (50:1), 10-μm-long electrically conductive multifunctional nanobundles are templated from 200 nm anodized aluminum oxide membrane via a conformal vapor based synthesis known as oxidative chemical vapor deposition of a copolymer of 3,4-ethylenedioxythiophene and 3-thiopheneethanol. The vapor phase oxidative step growth synthesis processes vapor phase polymerization and oxidative chemical vapor deposition for both conducting and semiconducting polymer thin films and their applications are reviewed by Dhiman Bhattacharyya, Rachel M. Howden, David C. Borrelli, and Karen K. Gleason on page 1329 of this issue. Both the techniques provide many unique advantages over the wet-chemical syntheses and deposition of the similar types of polymers.

  2. Reviews

    1. Top of page
    2. Cover Image
    3. Reviews
    4. Communications
    5. Full Papers
    1. You have free access to this content
      Vapor phase oxidative synthesis of conjugated polymers and applications (pages 1329–1351)

      Dhiman Bhattacharyya, Rachel M. Howden, David C. Borrelli and Karen K. Gleason

      Version of Record online: 16 AUG 2012 | DOI: 10.1002/polb.23138

      Thumbnail image of graphical abstract

      In this article, the development and advantages of two vapor-based technologies for the simultaneous synthesis and deposition of conjugated polymer thin films are reviewed: vapor phase polymerization and oxidative chemical vapor deposition. Applications of both conductive and semiconductive polymer films fabricated by these two techniques are discussed.

  3. Communications

    1. Top of page
    2. Cover Image
    3. Reviews
    4. Communications
    5. Full Papers
    1. Effects of stereocomplexation on the physicochemical behavior of PLA/PEG block copolymers in aqueous solution (pages 1352–1355)

      Xiaohan Wu, Suming Li and Abdeslam El Ghzaoui

      Version of Record online: 10 AUG 2012 | DOI: 10.1002/polb.23137

      Thumbnail image of graphical abstract

      Amphiphilic copolymers have been widely investigated as drug carriers because of their ability to self-assemble into various aggregates such as nanoparticles, vesicles, micelles, and so on. Here, the effects of stereocomplexation on the physicochemical behavior of polylactide/poly(ethylene glycol) copolymers in aqueous solution were investigated by varying the degree of stereocomplexation or PLLA/PEG to PDLA/PEG ratio. Stereocomplexation strongly affects the solubility, size, and aggregation number of the aggregates.

  4. Full Papers

    1. Top of page
    2. Cover Image
    3. Reviews
    4. Communications
    5. Full Papers
    1. Microstructure, electrical, and electromagnetic interference shielding properties of carbon nanotube/acrylonitrile–butadiene–styrene nanocomposites (pages 1356–1362)

      Mohammed H. Al-Saleh and Uttandaraman Sundararaj

      Version of Record online: 3 AUG 2012 | DOI: 10.1002/polb.23129

      Thumbnail image of graphical abstract

      Carbon nanotube (CNT)/polymer nanocomposites are promising materials with multifunctional properties. When insulating polymers are blended with sufficient quantity of conductive filler, there is a drastic change in the conductivity and electromagnetic interference shielding ability. Electrical and EMI shielding behaviors of CNT/acrylonitrile–butadiene–styrene nanocomposites fabricated by melt mixing are studied as function of CNT concentration. The selective and good level of dispersion of CNT in the styrene-acrylonitrile(SAN) section of the ABS polymer created conductive networks inthe ABS matrix at very low nanofiller loading. The level of shielding achieved with these nanocomposites makes them suitable for shielding applications in the computer industry.

    2. Optical order of the polymer phase within polymer/fullerene blend films (pages 1363–1373)

      Sebastian Engmann, Vida Turkovic, Paul Denner, Harald Hoppe and Gerhard Gobsch

      Version of Record online: 6 AUG 2012 | DOI: 10.1002/polb.23131

      Thumbnail image of graphical abstract

      Charge transport physics in organic devices such as OFETs and OSCs is one of the most investigated fields in polymer science. Typically, the charge transport is highly anisotropic—in the case of P3HT films, it is mainly limited to the <010> and <001> directions—and the degree of polymer order determines the device performance. In this study, methods are demonstrated to determine the polymer order in terms of the average conjugation length, which is crucial for the optical and electronic properties of organic devices

    3. Preparation, characterization, and properties of novel biodegradable aliphatic–aromatic copolyester nanohybrids with polyhedral oligomeric silsesquioxanes moieties (pages 1374–1382)

      Bing-Tao Wang, Yan Zhang, Ping Zhang, De Gao and Zheng-Ping Fang

      Version of Record online: 3 AUG 2012 | DOI: 10.1002/polb.23128

      Thumbnail image of graphical abstract

      Biodegradable polymer materials that simultaneously exhibit high modulus, ductility, and thermal stability are required for many applications. To create materials that fulfill these requirements, difunctional polyhedral oligomeric silsesquioxane (POSS) monomer is designed and biodegradable aliphatic–aromatic copolyester nanohybrids tethering POSS moieties at the macromolecular chains are prepared and characterized. This article reports the effect of the architecture and the state of the POSS component on the bulk mechanical and thermal properties.

    4. Viscosity studies of poly(DL-lactic acid) in supercritical CO2 (pages 1383–1393)

      Catherine A. Kelly, Steven M. Howdle, Kevin M. Shakesheff, Mike J. Jenkins and Gary A. Leeke

      Version of Record online: 3 AUG 2012 | DOI: 10.1002/polb.23130

      Thumbnail image of graphical abstract

      To facilitate the processing of poly(DL-lactic acid) (PDLLA), a polymer widely used in biomedical applications, supercritical CO2 is often used to reduce the viscosity and therefore the temperatures required. In this work, a high pressure rheometer is used to assess the effect of temperature and pressure on the rheological properties of PDLLA. Reductions in the viscosity and critical shear rate occur on heating and/or raising theCO2 pressure indicating a reduction in the polymer relaxation time.

SEARCH

SEARCH BY CITATION