Journal of Polymer Science Part A: Polymer Chemistry
Copyright © 2012 Wiley Periodicals, Inc., A Wiley Company
Impact Factor: 3.113
ISI Journal Citation Reports © Ranking: 2014: 18/82 (Polymer Science)
Online ISSN: 1099-0518
Associated Title(s): Journal of Polymer Science Part B: Polymer Physics
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- Two dibenzo[Def, Mno]chrysene-based polymeric semiconductors: Surprisingly opposite device performances in field-effect transistors and solar cells
Yu Jin Kim, Ji Sang Lee, Jisu Hong, Yebyeol Kim, Song Bong Lee, Soon-Ki Kwon, Yun-Hi Kim and Chan Eon Park
Article first published online: 28 APR 2016 | DOI: 10.1002/pola.28133
A new series of conjugated polymers containing dibenzo[def, mno]chrysene units, PTTC and PTVTC, were successfully designed and synthesized. Two polymers exhibited similar optical and electrochemical properties, but they behaved very differently when used in thin-film transistors and solar cells. The PTTC polymer showed higher charge transport ability, whereas the PTVTC polymer presented higher efficiency in photovoltaic cells.
- Study of the composition and morphology of new modifications of titanium-magnesium catalysts with improved properties in ethylene polymerization
Tatiana B. Mikenas, Evgeny I. Koshevoy, Svetlana V. Cherepanova and Vladimir A. Zakharov
Article first published online: 26 APR 2016 | DOI: 10.1002/pola.28132
The new highly active supported Ti-Mg catalyst (TMC-M) with improved morphology has higher sensitivity to hydrogen as regulator of PE molecular weight and produce polymer with high bulk density. TMC-M has highly disordered crystal structure and contains alcohol as intercalate in MgCl2 interlayer structure. TMC-M has high specific surface area and small pore size after activation by AlEt3. These physicochemical properties of TMC-M seem to be the important factors determining the improved catalytic properties.
- Lactose-containing hydrogels for enzyme stabilization
Yongshun Huang, Qinyuan Chai, Mary R. Warmin and Neil Ayres
Article first published online: 21 APR 2016 | DOI: 10.1002/pola.28127
A lactose-containing hydrogel stabilizes the enzyme Papain against heating and lyophilization leading to a retention of activity. Release kinetics of the enzyme, and swelling ratio and storage moduli of the gels, can be tuned by changing the comonomer composition used to prepare the gels.
- Synergistic effect of cellulose nanowhiskers reinforcement and dicarboxylic acids crosslinking towards polyvinyl alcohol properties
Amit Kumar Sonker, Naveen Tiwari, Rajaram Krishna Nagarale and Vivek Verma
Article first published online: 21 APR 2016 | DOI: 10.1002/pola.28129
PVA and BCNW samples are crosslinked with diacids to demonstrate the synergy between the two processes, namely reinforcement and crosslinking. In addition to the synergistic effect, the effect of crosslinker (diacid) length on the properties of PVA is also studied in detail.
- Pendant groups fine-tuning thermal gelation of poly(ε-caprolactone)-b-poly(ethylene glycol)-b-poly(ε-caprolactone) aqueous solution
Yan Zhang, Miao Wang, Jinhai Ye and Meidong Lang
Article first published online: 21 APR 2016 | DOI: 10.1002/pola.28134
The thermal gelation behavior of PCL-PEG-PCL aqueous solution was finely tuned via the introduction of hydrophobic γ-(carbamic acid benzyl ester) and hydrophiphilic amino pendant groups. This pendant group modification approach supplied a platform to adjust various physicochemical properties of the aliphatic polyester hydrogels without sacrifice of the intrinsic properties of the polyesters, which could preferably facilitate biomedical application of the PEG/PCL hydrogels.