Journal of Polymer Science Part A: Polymer Chemistry
Copyright © 2012 Wiley Periodicals, Inc., A Wiley Company
Impact Factor: 3.543
ISI Journal Citation Reports © Ranking: 2012: 12/83 (Polymer Science)
Online ISSN: 1099-0518
Associated Title(s): Journal of Polymer Science Part B: Polymer Physics
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- Selective nucleophilic additions to poly(methacrylate)s containing isothiocyanate moieties in the side chains and their application in cross-linking
Ryota Seto, Kozo Matsumoto and Takeshi Endo
Article first published online: 15 APR 2014 | DOI: 10.1002/pola.27189
Reactivity of isothicyanate moiety containing polymethacrylate in the side chain with amine, alcohol, or thiol was investigated. The isothiocyanate moiety containing polymethacrylates in the side chain reacted with amines without a catalyst. Conversely, the isothiocyanates did not react with alcohol or thiols under the same condition applied to the amines. Addition of alcohol or thiol to the isothiocyanate needs catalysts. A diamine or diol was added to the isothicyanates to prepare networked polymers.
- You have free access to this contentSynthesis and solid-state self-assembly of poly(ethylene glycol)-b-poly(γ-benzyl-l-glutamate)s and single-walled carbon nanotubes
Haoyu Tang, Ying Ling, Yong Deng and Donghui Zhang
Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27193
A series of coil-rod poly(ethylene glycol)-b-poly(γ-benzyl-l-glutamate)s (PEG-b-PBLGs) with α-helical conformations have been prepared from methoxypoly(ethylene glycol) amine (mPEG-NH2)-mediated ring-opening polymerization of γ-benzyl-l-glutamic acid based N-carboxylanhydride. PEG-b-PBLGs form a lamellar structure where PBLG segments pack into hexagonal arrays when frod is less than 0.28. Incorporation of single-walled carbon nanotube (SWCNT) causes an increase of the d-spacing of both lamellar and hexagonal packing, suggesting the intercalation of SWCNTs into the PEG-b-PBLGs matrices the SWCNTs are oriented normal to the lamellar interface.
- Synthesis and properties of long-chain branched poly(ether sulfone)s by self-polycondensation of AB2 type macromonomers
Mitsutoshi Jikei, Daisuke Uchida, Kazuya Matsumoto, Ryohei Komuro and Masataka Sugimoto
Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27188
Long-chain branched poly(ether sulfone)s (PESs) are synthesized via self-polycondensation of AB2 macromonomers. Gel permeation chromatography with multiangle light scattering detection and solution viscosity measurements suggest that the molecular shape of long-chain branched PESs changes from hyperbranched to a linear-like architecture, depending on the molecular weight of the AB2 macromonomers. Rheological measurements suggest the presence of strongly entangled chains in the long-chain branched PES synthesized from the high-molecular-weight macromonomer.
- Alkylamines-intercalated α-zirconium phosphate as latent thermal anionic initiators
Osamu Shimomura, Keisuke Maeno, Atsushi Ohtaka, Shunro Yamaguchi, Junko Ichihara, Kiyoko Sakamoto and Ryôki Nomura
Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27191
The reaction of glycidyl phenyl ether (GPE) with α-zirconium phosphate (α-ZrP) intercalated 1-aminoalkanes 1-aminopropane (α-ZrP·Pr), 1-aminobutane (α-ZrP·Bu), 1-aminooctane (α-ZrP·Oct), and 1-aminohexadecane (α-ZrP·Hed) was carried out and these intercalation compounds performed well as latent thermal initiators. Especially, α-ZrP·Hed have the potential to initiate reaction on heating while remaining stable during storage around ambient temperature.
- Tuning the low critical solution temperature of polymer brushes grafted on single-walled carbon nanotubes and temperature dependent loading and release properties
Xin Jia, Guoxiang Zhang, Wei Li, Wenbo Sheng and Cuihua Li
Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27186
An easy and reliable method is developed to tune the low critical solution temperatures (LCSTs) of thermo-responsive polymer brushes grafted on single-walled carbon nanotubes (SWCNTs), and to study the LCST-dependent drug-loading and drug-release properties of these polymer-modified SWCNTs. The copolymers grafted on SWCNTs are retrieved by 1 M NaOH to evaluate their molecular weights and LCSTs. Additionally, the pristine properties of SWCNTs are preserved.