Macromolecular Materials and Engineering
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Recently Published Articles
- Flame-Retarded Epoxy Resins with a Curing Agent of DOPO-Triazine Based Anhydride
Alvianto Wirasaputra, Xiaohao Yao, Yaming Zhu, Shumei Liu, Yanchao Yuan, Jianqing Zhao and Yi Fu
Version of Record online: 13 MAY 2016 | DOI: 10.1002/mame.201600094
An anhydride curing agent containing 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and triazine group (2,4,6-tris-(DOPO-methylformatephthalic anhydride-phenoxy)-1,3,5-triazine) is synthesized and is used to enhance the flame retardancy of diglycidyl ether of bisphenol A/methylhexahydrophthalic anhydride. The curing behavior and kinetics of the system are analyzed in-depth. The flame retardancy is improved significantly with maintained high heat resistance.
- Effect of Soft-to-Hard Segment Ratio on Viscoelastic Behavior of Model Thermoplastic Polyurethanes during Phase Transitions
Jesse L. Gadley, Ricardo J. Andrade and João M. Maia
Version of Record online: 9 MAY 2016 | DOI: 10.1002/mame.201500450
Understanding changes in rheological properties over time near phase transition the temperature of TPUs provides an avenue to success in processing and postprocessing of these materials. The work shown here demonstrates a change in moduli of more than two orders of magnitude when exposing these materials to elevated temperatures postprocess, greatly affecting extensional properties.
- Nanofiber-Based Hydrocolloid from Colloid Electrospinning Toward Next Generation Wound Dressing
Sohee Kim, Sung-Gurl Park, Sun-Woong Kang and Kyung Jin Lee
Version of Record online: 6 MAY 2016 | DOI: 10.1002/mame.201600002
Fiber-based hydrocolloid scaffold is obtained through colloid electrospinning. High wettability is achieved by varying the amount of hydrophilic polymer (S.CMC) or the morphology of the dressing. The wound healing effect of nanofiber-hydrocolloid is then observed during an in vivo animal study.
- Injection Molding Micro- and Nanostructures in Thermoplastic Elastomers
John M. Stormonth-Darling, Anwer Saeed, Paul M. Reynolds and Nikolaj Gadegaard
Version of Record online: 6 MAY 2016 | DOI: 10.1002/mame.201600011
Injection molding offers a faster way to replicate large numbers of flexible micro- and nanopatterned samples than established processes like PDMS casting. This paper explores the optimal processing parameters and minimum feature sizes obtainable with injection molded thermoplastic polyurethane with a view to mass producing flexible structures for experiments into the effects substrate rigidity on living cells.
- Fabrication, Morphology Control, and Electroless Metal Deposition of Electrospun ABS Fibers
Yu-Jing Chiu, Mu-Huan Chi, Ying-Hsuan Liu and Jiun-Tai Chen
Version of Record online: 6 MAY 2016 | DOI: 10.1002/mame.201600100
The fabrication of ABS fibers is reported by an electrospinning technique, in which the sizes and morphologies of the fibers can be controlled by adjusting the electrospinning conditions. The morphologies of the ABS fibers can also be transformed by annealing the fibers on poly (methyl methacrylate) (PMMA) films. After annealing, the ABS fibers gradually transform to ABS particles embedded in the PMMA films by a mechanism similar to the Rayleigh-instability-type transformation.