Recent journals

2015

  • April 1st Synthesis and Characterization of Thermoplastic Elastomers with Polyisobutylene and Polyalloocimene Blocks

      Attila L. Gergely1, Judit E. Puskas1,2 1 Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA 2 Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325-3906, USA   This article presents the synthesis and characterization of diblock, triblock, and tetrablock copolymers of alloocimene (Allo)​, a terpene from renewable resources, and isobutylene […]

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  • April 1st Parallel models for arborescent polyisobutylene synthesized in batch reactor

      Yutian R. Zhao1,Kimberley B. McAuley1, Judit E. Puskas2 1 Dept. of Chemical Engineering, Queen’s University, Kingston, ON, Canada 2 Dept. of Chemical & Biomolecular Engineering, University of Akron, Akron, OH   A math. model is developed for estg. kinetic parameters that influence the prodn. of arborescent polyisobutylene via carbocationic copolymn. of inimer (IM) and isobutylene.  Six different […]

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  • April 1st Visualization of the architecture of poly (α-lipoic acid) using atomic force microscopy

      Emily Q. Rosenthal-Kim1, ,Rebecca L. Agapov1, ,Judit E. Puskas1, 2 1 Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA 2 Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325-3906, USA   The architecture of thermally polymd. poly(α-​lipoic acid) after enzyme-​catalyzed amplification was investigated by Atomic Force Microscopy (AFM)​.  Branched structures were obsd., in contrast […]

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  • April 1st Biocompatibility evaluation of a thermoplastic rubber for wireless telemetric intracranial pressure sensor coating

      Jun Yang1, Andrea C. Charif4,5, Judit E. Puskas4,5, Hannah Phillips1, Kaitlyn J. Shanahan1, Jessica Garsed1, Aaron Fleischman2, Ken Goldman3, Matthew T. Luebbers4, Stephen M. Dombrowski1, Mark G. Luciano1 1 Department of Neurosurgery, Section of Pediatric and Congenital Neurological Surgery, CSF Physiology Laboratory, Neurological Institute, S60, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA 2 Department of Biomedical Engineering, Lerner Research Institute, Cleveland […]

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  • April 1st Green Polymer Chemistry: Synthesis of Symmetric and Asymmetric Telechelic Ethylene Glycol Oligomers

      Marcela Castano1,   Kwang Su Seo1,   Kai Guo1,  Matthew L. Becker1,   Chrys Wesdemiotis1,2, Judit E. Puskas1,2,3 1 Department of Polymer Science, The University of Akron, Akron, USA 2 Department of Chemistry, The University of Akron, Akron, USA 3 Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, USA   In this work we investigated the kinetics of the […]

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  • April 1st New Method for the Synthesis of Fully Aliphatic Telechelic α,ω-dihydroxy Polyisobutylene

      Marcela Castano1,   Matthew L. Becker1,   Judit E. Puskas1,2 1 Department of Polymer Science The University of Akron, Akron, USA 2 Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, USA   This paper reports a new method for the synthesis of α,​ω-​primary-​dihydroxy PIBs (HO-​PIB-​OH) with a fully aliph. backbone.  Three aliph. difunctional initiators with tertiary-​methoxy, tertiary-​chloride and tertiary-​hydroxyl end groups (TMHDiOMe, […]

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  • April 1st The Effect of Carbon Black Reinforcement on the Dynamic Fatigue and Creep of Polyisobutylene-Based Biomaterials

      Götz, C.1, Lim, G.T.2, Puskas, J.E.2,3, Altstädt, V.1  1 Department of Polymer Engineering, Faculty of Engineering Science, University of Bayreuth, Universitätsstraβe 30, Bayreuth D-95447, Germany 2 Department of Chemical and Biomolecular Engineering, University of Akron, Akron, OH 44325-0406, USA 3 Department of Polymer Science, University of Akron, Akron, OH 44325-3909, USA   This paper investigates the structure-​property […]

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  • April 1st Unraveling the Mystery of Natural Rubber Biosynthesis. Part II: Composition and Growth of In Vitro Natural Rubber Using High-Resolution Size Exclusion Chromatography

      Cheng Ching K. Chiang1, Balaka Barkakaty2, Judit E. Puskas1,3, Wenshuang Xie4, Katrina Cornish4, Federic Peruch5, Alain Deffieux5 1Department of Polymer Science, The University of Akron, Akron, OH 44325 2The Center for Nanophase and Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 3Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, […]

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  • April 1st Synthesis of Functionalized Polyisobutylenes using the Propylene Epoxide/TiCl4 Initiating System

    The synthesis of sym. and asym. telechelic polyisobutylenes (PIBs) is reported.  A PIB with a primary hydroxy head group and an allyl end group (HO-​PIB-​Allyl, Mn = 4300 g​/mol, Mw/Mn = 1.2) was synthesized by living carbocationic polymn. of isobutylene (IB) using propylene epoxide as an initiator and allyltrimethylsilane as a terminating agent.  Thiol-​ene click chem. using 2-​mercaptoethanol and 1,​2-​ethanedithiol yielded […]

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  • April 1st Enzyme-Catalyzed Ring-Opening polymerization of ε-caprolactone using Alkyne Functionalized Initiators

      Marcela Castano1,   Jukuan Zheng1,   Judit E. Puskas1,2 and  Matthew L. Becker1  1 Department of Polymer Science, The University of Akron, Akron, OH 44325-3909, USA 2 Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325-3906, USA   Well-​defined poly(caprolactone)​s were generated using alkyne-​based initiating systems catalyzed by Candida antarctica Lipase B (CALB)​.  Propargyl alc. and […]

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