TY - JOUR
T1 - Lipophilic ionomers with bulky ion-pairs and effect of counterion on miscibility of the ionomer blends
AU - Ohta, Masahiko
AU - Ono, Toshikazu
AU - Kokado, Kenta
AU - Kakugo, Akira
AU - Sada, Kazuki
N1 - Funding Information:
Acknowledgements: The authors thank Prof. K. Murakoshi for the use of AFM, and Prof. J. P. Gong and Prof. T. Kurokawa for the use of tensile testing machine. The project was supported by the JSPS Grant-in-Aid for Scientific Research (B) (23350048), JSPS Grant-in-Aid for Young Scientists (B) (23750117), and the Grant-in-Aid for the Global COE Program, “Catalysis as the Basis for Innovation in Materials Science” from the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT). T.O. acknowledges the JSPS Grant-in-Aid for JSPS Fellows (12J02749).
Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - In this study, polystyrene (PS) ionomers having tetraalkylammonium with a series of counterions are prepared with various feed ratio of the ionic units and blended with nonionic poly(n-butyl methacrylate) (PBMA) which is originally immiscible with PS. According to differential scanning calorimetry analysis, in the blends of ionomers with tetraarylborate and PBMA, the ionomers with more than 1 mol% of the ionic units are completely miscible with PBMA. Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction measurements reveal that the bulky and lipophilic ion-pair inhibits the association of ions and instead induces the attractive interaction to alkyl groups of PBMA. Tensile tests of the miscible specimen exhibit both characteristic behavior, that is, high tensile strength as PS and high elongation property of PBMA. Employment of lipophilic ion-pair as a compatibilizing component is produced for homogeneous polymer blends consisting of polystyrene (PS) and poly(n-butyl methacryrate) (PBMA). The lipophilic ion-pair is tethered on the PS chain and only 1 mol% introduction is adequate to obtain the homogeneous polymer blends. The obtained polymer blends show combined characteristics, thus high tensile strength of PS and high elongation property of PBMA.
AB - In this study, polystyrene (PS) ionomers having tetraalkylammonium with a series of counterions are prepared with various feed ratio of the ionic units and blended with nonionic poly(n-butyl methacrylate) (PBMA) which is originally immiscible with PS. According to differential scanning calorimetry analysis, in the blends of ionomers with tetraarylborate and PBMA, the ionomers with more than 1 mol% of the ionic units are completely miscible with PBMA. Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction measurements reveal that the bulky and lipophilic ion-pair inhibits the association of ions and instead induces the attractive interaction to alkyl groups of PBMA. Tensile tests of the miscible specimen exhibit both characteristic behavior, that is, high tensile strength as PS and high elongation property of PBMA. Employment of lipophilic ion-pair as a compatibilizing component is produced for homogeneous polymer blends consisting of polystyrene (PS) and poly(n-butyl methacryrate) (PBMA). The lipophilic ion-pair is tethered on the PS chain and only 1 mol% introduction is adequate to obtain the homogeneous polymer blends. The obtained polymer blends show combined characteristics, thus high tensile strength of PS and high elongation property of PBMA.
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U2 - 10.1002/macp.201500281
DO - 10.1002/macp.201500281
M3 - Article
AN - SCOPUS:84956877895
SN - 1022-1352
VL - 217
SP - 433
EP - 444
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 3
ER -