Macromolecular Rapid Communications

Cover image for Vol. 33 Issue 16

August 28, 2012

Volume 33, Issue 16

Pages 1321–1408

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Review
    7. Communications
    1. Macromol. Rapid Commun. 16/2012 (page 1321)

      Zeng Yan, Xinming Ji, Wei Wu, Jia Wei and Yanlei Yu

      Article first published online: 13 AUG 2012 | DOI: 10.1002/marc.201290054

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      Front Cover: Two-dimensional micro-array was fabricated from a crosslinked liquid crystal polymer containing azobenzene groups. Light-controlled switchable behavior of the micro-array was obtained by alternate irradiation of UV and visible light arising from the photoinduced deformation of the crosslinked liquid crystal polymer. Further details can be found in the article by Z. Yan, X. Ji, W. Wu, J. Wei, and Y. Yu* on page 1362.

  2. Back Cover

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Review
    7. Communications
    1. Macromol. Rapid Commun. 16/2012 (page 1412)

      Ross S. Johnson, Cody M. Washburn, Alan W. Staton, Matthew W. Moorman, Ronald P. Manginell, Michael T. Dugger and Shawn M. Dirk

      Article first published online: 13 AUG 2012 | DOI: 10.1002/marc.201290055

      Thumbnail image of graphical abstract

      Back Cover: Precursor poly(p-phenylene vinylene) polymers eliminate pentanol at elevated temperatures providing ‘on-demand’ vapor-phase lubrication for MicroElectroMechanical Systems. Further details can be found in the article by R. S. Johnson, C. M. Washburn, A. W. Staton, M. W. Moorman, R. P. Manginell, M. T. Dugger, and S. M. Dirk* on page 1346.

  3. Masthead

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Review
    7. Communications
    1. Macromol. Rapid Commun. 16/2012

      Article first published online: 13 AUG 2012 | DOI: 10.1002/marc.201290056

  4. Contents

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Review
    7. Communications
    1. Macromol. Rapid Commun. 16/2012 (pages 1323–1326)

      Article first published online: 13 AUG 2012 | DOI: 10.1002/marc.201290053

  5. Review

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Review
    7. Communications
    1. Rare Earth Metal-Mediated Group Transfer Polymerization of Vinylphosphonates (pages 1327–1345)

      Stephan Salzinger and Bernhard Rieger

      Article first published online: 10 JUL 2012 | DOI: 10.1002/marc.201200278

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      Faster, higher, stronger,… simply better. True to the Olympic motto: late lanthanide metallocenes polymerize vinylphosphonates extremely fast (TOF up to 125 000 h−1) and give access to high-molecular-weight polymers. The reaction proceeds in a living fashion via a rare earth metal-mediated group transfer polymerization mechanism. Surface-initiated group transfer polymerization allows fast and efficient preparation of thick and uniform polymer brushes.

  6. Communications

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Review
    7. Communications
    1. Thermally-Activated Pentanol Delivery from Precursor Poly(p-phenylenevinylene)s for MEMS Lubrication (pages 1346–1350)

      Ross S. Johnson, Cody M. Washburn, Alan W. Staton, Matthew W. Moorman, Ronald P. Manginell, Michael T. Dugger and Shawn M. Dirk

      Article first published online: 18 JUL 2012 | DOI: 10.1002/marc.201200325

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      The “on-demand” delivery of a vapor-phase lubricant to MicroElectoMechanical Systems (MEMS) will allow for scheduled or as-needed lubrication of the moving components, improving the performance, reliability, and lifespan of the devices. A delivery system utilizing a newly designed microhotplate along with two new precursor poly(p-phenylene vinylene) polymers that thermally eliminate a pentanol lubricant is described.

    2. Molecular Nanoworm with PCL Core and PEO Shell as a Non-spherical Carrier for Drug Delivery (pages 1351–1355)

      Peng Zhao, Lixin Liu, Xiaoqin Feng, Chun Wang, Xintao Shuai and Yongming Chen

      Article first published online: 18 MAY 2012 | DOI: 10.1002/marc.201200172

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      Poly(ϵ-caprolactone)-b-poly(ethylene oxide)s are densely grafted along a polymer with a high degree of polymerization and water soluble molecular worms with a structure of PCL core and PEO shell are obtained. This well-defined molecular worm with an average length of 230 nm is evaluated as a vehicle to deliver doxorubicin.

    3. Efficient Polymerization of Azide and Active Internal Alkynes (pages 1356–1361)

      Qiang Wei, Haiqin Deng, Yunbo Cai, Jacky W. Y. Lam, Jie Li, Jingzhi Sun, Meng Gao, Anjun Qin and Ben Zhong Tang

      Article first published online: 18 MAY 2012 | DOI: 10.1002/marc.201200212

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      An efficient 1,3-dipolar polycycloaddition of azide and bis(benzoylethynyl)-based active internal alkynes is established. Soluble 1,4,5-trisubstituted polytriazoles with satisfactory molecular weights are prepared in excellent yields. The obtained polytriazoles are thermally stable and photosensitive, and exhibit high refractive indices.

    4. Light-Switchable Behavior of a Microarray of Azobenzene Liquid Crystal Polymer Induced by Photodeformation (pages 1362–1367)

      Zeng Yan, Xinming Ji, Wei Wu, Jia Wei and Yanlei Yu

      Article first published online: 3 JUL 2012 | DOI: 10.1002/marc.201200303

      Thumbnail image of graphical abstract

      Two-dimensional microarray was fabricated from a crosslinked liquid crystal polymer containing azobenzene groups. Light-controlled switchable behavior of the microarray was obtained by alternate irradiation of UV and visible light arising from the photoinduced deformation of the crosslinked liquid crystal polymer.

    5. Polysulfone Functionalized With Phosphonated Poly(pentafluorostyrene) Grafts for Potential Fuel Cell Applications (pages 1368–1374)

      Ivaylo Dimitrov, Shogo Takamuku, Katja Jankova, Patric Jannasch and Søren Hvilsted

      Article first published online: 24 MAY 2012 | DOI: 10.1002/marc.201200216

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      Graft copolymers having polysulfone backbone and highly phosphonated poly(pentafluorostyrene) side chains are synthesized through a combination of controlled radical polymerization, polymer modifications, and “click” chemistry. The copolymer membranes show constant proton conductivity of ≈80 mS cm−1 under fully immersed conditions at temperatures up to 120 °C and start to decompose at temperatures around 400 °C.

    6. Microencapsulation of a Crop Protection Compound by Initiated Chemical Vapor Deposition (pages 1375–1380)

      Ranjita K. Bose, Alex M. Heming and Kenneth K. S. Lau

      Article first published online: 10 MAY 2012 | DOI: 10.1002/marc.201200214

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      Initiated chemical vapor deposition (iCVD) is a viable liquid-free process for the tandem synthesis and conformal coating of polymers onto microparticles of a crop protection compound. By varying iCVD conditions, the barrier properties of the coatings can be controlled via tuning hydrophobicity, crosslinking, film thickness, and mass diffusivity.

    7. Effect of Nonsolvent on the Formation of Polymer Nanomaterials in the Nanopores of Anodic Aluminum Oxide Templates (pages 1381–1387)

      Chih-Wei Lee, Tzu-Hui Wei, Chun-Wei Chang and Jiun-Tai Chen

      Article first published online: 18 MAY 2012 | DOI: 10.1002/marc.201200200

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      Poly(methyl methacrylate) (PMMA) solution in dimethylformamide (DMF) is first introduced to the nanopores of AAO templates by capillary force. When water (nonsolvent) is added, the polymer solution is isolated in the central part of the nanopores, resulting in the formation of polymer nanospheres or nanorods.

    8. An Emulsifier-Free RAFT-Mediated Process for the Efficient Synthesis of Cerium Oxide/Polymer Hybrid Latexes (pages 1388–1392)

      Jérôme Garnier, Jérôme Warnant, Patrick Lacroix-Desmazes, Pierre-Emmanuel Dufils, Jérôme Vinas, Yves Vanderveken and Alex M. van Herk

      Article first published online: 18 MAY 2012 | DOI: 10.1002/marc.201200093

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      Hybrid latexes comprising cerium oxide nanoparticles were synthesized via an emulsifier-free process employing amphiphatic random RAFT copolymers. Poly(butyl acrylate-co-acrylic acid) macro-RAFT agents adsorbed at the cerium oxide surface were chain extended with styrene and methyl acrylate, resulting in the complete incorporation of cerium oxide in the final hybrid latexes.

    9. Size-Tunable Polymeric Nanoreactors for One-Pot Synthesis and Encapsulation of Quantum Dots (pages 1393–1398)

      Guannan Qian, Benchuan Zhu, Youfu Wang, Sheng Deng and Aiguo Hu

      Article first published online: 21 MAY 2012 | DOI: 10.1002/marc.201200199

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      Hydrophilic polymeric nanoparticles are synthesized through intramolecular chain collapse of structurally well-defined linear polymers, and then used as size-tunable nanoreactors to fabricate and encapsulate quantum dots in a one-pot reaction. Smaller nanoreactors produce one quantum dot each while larger nanoreactors form a number.

    10. Functional Monolithic Materials for Boronate-Affinity Chromatography via Schrock Catalyst-Triggered Ring-Opening Metathesis Polymerization (pages 1399–1403)

      Rajendar Bandari and Michael R. Buchmeiser

      Article first published online: 5 JUN 2012 | DOI: 10.1002/marc.201200247

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      Polymeric monoliths were prepared via Schrock catalyst-triggered ring-opening metathesis polymerization. Functionalization is accomplished by terminating the metal alkylidenes with various aldehydes. Alternatively, a dioxoborolanyl-substituted norborn-2-ene is grafted onto the monolith. Boronate grafted-monolithic columns are successfully applied to the affinity chromatographic separation of cis-diol-based biomolecules.

    11. A Novel Fibrous Material Created by Self-Rolling of a Patterned Polymer Thin Film (pages 1404–1408)

      V. A. Luchnikov, Y. Saito and L. Tzanis

      Article first published online: 25 JUN 2012 | DOI: 10.1002/marc.201200240

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      A novel fibrous material with scroll-like internal structure of the fibers is obtained by the controlled rolling up of a patterned polymer film. The film scrolls due to the differential swelling of the bottom and the top layers of the film in a selective solvent. The fibers can be loaded with functional micro- or nanoparticles.

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