Macromolecular Reaction Engineering
Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Materials Science Weekly Newsletter
Recently Published Articles
- Alternation of Pore Architecture of Ziegler–Natta Catalysts through Modification of Magnesium Ethoxide
Toshiki Funako, Patchanee Chammingkwan, Toshiaki Taniike and Minoru Terano
Article first published online: 27 MAR 2015 | DOI: 10.1002/mren.201400074
The modification of magnesium ethoxide with a small amount of i-propoxide caused the transformation of the crystalline phase and the particle densification, leading to significant alternation of the pore architecture of Ziegler–Natta catalysts.
- Encapsulation of PV Modules Using Ethylene Vinyl Acetate Copolymer as the Encapsulant
Shan Jiang, Kemin Wang, Hongwen Zhang, Yonghong Ding and Qiang Yu
Article first published online: 27 MAR 2015 | DOI: 10.1002/mren.201400065
This article pays special attention to research work on improving the performance of EVA encapsulation films of photovoltaic (PV) modules, including the aging resistance, adhesive strength, and energy conversion efficiency. β-Diketone macromolecular complexes are synthesized and doped into EVA film to increase the photovoltaic conversion efficiency and service life of EVA films.
- New Chemistries and Technologies Derived from a Common Reaction of α-Methylstyrene at 61 °C
Yuhong Ma, Shan Jiang, Shujun Liang and Wantai Yang
Article first published online: 25 MAR 2015 | DOI: 10.1002/mren.201400059
Free radical copolymerizations of styrene and (meth)acrylates with α-methylstyrene as the comonomer show that the molecular weights of the copolymers increase with the monomer conversion. The copolymers are able to generate chain free radicals when heated above 90 °C. These chain radicals have been applied to initiate vinyl monomers to prepare block and functional polymers. In addition, these chain radicals can act as in situ compatibilizers by forming graft polymers and can also modify MWCNTs by a grafting-onto mechanism.
- Polytrimethylene Terephthalate: An Example of an Industrial Polymer Platform Development in China
Qiongdan Xie, Xilong Hu, Tengjiao Hu, Pan Xiao, Youyong Xu and Kenneth W. Leffew
Article first published online: 24 MAR 2015 | DOI: 10.1002/mren.201400070
This short review introduces the industrial polymer platform of polytrimethylene terephthalate (Sorona) within DuPont China Research and Development Center founded in 2005. The R&D competencies and some of the research content on Sorona are briefly introduced in this paper. This platform continues to develop new applications for Sorona and provides technical support to the Chinese market for Sorona.
- Synthesis of Poly(Sodium Acrylate) Nanogels Via Semicontinuous Inverse Heterophase Polymerization
Jorge Manuel Silva, Fernando Bautista, Juan Carlos Sánchez-Díaz, Sergio Manuel Nuño-Donlucas, J. E. Puig and Elena Hernández
Article first published online: 24 MAR 2015 | DOI: 10.1002/mren.201400066
The synthesis of poly(sodium acrylate) nanogels by semicontinuous inverse heterophase polymerization is presented. The figure shows a schematic representation of the W–O system that appears when an aqueous solution of sodium acrylate and a cross-linking agent is dosed at controlled rate over an organic solution containing surfactant and the initiator