Macromolecular Chemistry and Physics
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Recently Published Articles
- Biorenewable Thermoplastic Elastomeric Triblock Copolymers Containing Salicylic Acid-Derived End-Blocks and a Fatty Acid-Derived Midblock
Shu Wang, Wenyue Ding, Guozhen Yang and Megan L. Robertson
Article first published online: 30 NOV 2015 | DOI: 10.1002/macp.201500274
Sustainable thermoplastic elastomers, based on linear triblock copolymers containing a fatty acid-derived midblock and salicylic acid-derived endblocks, are explored. Poly(acetylsalicylic ethyl methacrylate), derived from salicylic acid, found in various plant components, is investigated as a biorenewable glassy replacement for polystyrene in thermoplastic elastomers. The synthesis and thermal and mechanical behavior of poly(acetylsalicylic ethyl methacrylate-block-lauryl methacrylate-block-acetylsalicylic ethyl methacrylate) triblock copolymers are described.
- Graphene Oxide–Poly(ethylene glycol) methyl ether methacrylate Nanocomposite Hydrogels
Joey Dacula Mangadlao, Rongzhi Huang, Edward Lee Foster, Katrina D. Pangilinan, Chaitanya Danda, Abigail Advincula, João M. Maia and Rigoberto C. Advincula
Article first published online: 30 NOV 2015 | DOI: 10.1002/macp.201500356
Graphene oxide–poly(ethylene glycol) methyl ether methacrylate (GO–PEGMEMA) and reversible addition-fragmentation chain transfer (GO–PEGMEMA–RAFT) are synthesized to represent physically mixed and covalently linked hydrogel systems. Spectroscopic techniques and electron microscopy show that PEGMEMA is successfully grafted in GO–PEGMEMA–RAFT. The rheological behavior of these nanocomposites exhibits a competition between reinforcement and lubrication effect of GO.
- Determination of Homopolymerization Kinetics of 10-(N-Methylacrylamido)-decylphosphonic acid, Its Diethyl ester, and 10-(Methacryloyloxy)-decylphosphonic acid, and Their Copolymerization with Methyl methacrylate
Štefan Chmela, Juraj Pavlinec, Agnesa Fiedlerová, Yohann Catel and Norbert Moszner
Article first published online: 24 NOV 2015 | DOI: 10.1002/macp.201500237
Homopolymerization of N-alkylacrylamides M1 and M2 as well as methacrylate M3 is performed in MeOH using azobisisobutyronitrile as an initiator. Monomer M2 is the most reactive. The copolymerization of M1, M2, and M3 with methyl methacrylate (MMA) is studied. Although M3 and MMA exhibit similar reactivities, monomers M1 and M2 polymerize much slower than MMA.
- Dendritic-Linear Hybrid Multiarm Star Polymers: A Straightforward Synthesis of Polymer as Molecular Nanoparticles
Abdulsalam Sultan Nasar and Selvaraj Veerapandian
Article first published online: 23 NOV 2015 | DOI: 10.1002/macp.201500372
Synthesis of multiarm star polymers via “core first” method but possibly through two different chain growth fashions is described. One of the chain growth fashions yields polymer in the form of discrete molecular nanoparticle straight away.
- Optical Studies of Poly(hydroxy imide) to Polybenzoxazole Thermal Rearrangement
Boz·ena Jarząbek, Magdalena Wójtowicz and Aleksandra Wolińska-Grabczyk
Article first published online: 20 NOV 2015 | DOI: 10.1002/macp.201500200
Thermal conversion of poly(hydroxy imide) (HPI) to polybenzoxazole (PBO) is studied for the first time by using optical measurements carried out in situ up to 400 °C. Additional results of the extensive characterization of HPI and PBO based on attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA), wide angle X-ray diffraction (WAXD), and gas permeation measurements are also presented.