Premium
Back Cover: Preparation of a Sulfo‐Group‐Containing Rod‐Like Polysilsesquioxane with a Hexagonally Stacked Structure and Its Proton Conductivity (Chem. Eur. J. 30/2014)
Author(s) -
Kaneko Yoshiro,
Toyodome Hisaya,
Mizumo Tomonobu,
Shikinaka Kazuhiro,
Iyi Nobuo
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201490126
Subject(s) - conductivity , proton , cover (algebra) , materials science , polymer chemistry , aqueous solution , dielectric spectroscopy , relative humidity , condensation polymer , polymer , group (periodic table) , chemical engineering , composite material , chemistry , organic chemistry , electrochemistry , physics , mechanical engineering , engineering , electrode , quantum mechanics , thermodynamics
A sulfo‐group‐containing rod‐ and ladder‐like polysilsesquioxane with a hexagonally stacked structure (PSQ‐SO 3 H) was successfully prepared by oxidation and hydrolytic polycondensation of 3‐mercaptopropyltrimethoxysilane (MPTMS) in a mixed aqueous solution of NaOH and H 2 O 2 . The proton conductivity of the PSQ‐SO 3 H film determined using complex impedance spectroscopy was relatively high (>10 −2 S cm −1 ) at 80 °C and 30–90% relative humidity. In the PSQ‐SO 3 H film, the protons likely migrate through the spaces between the regularly arrayed rod‐ and ladderlike polymers. For more details see the Full Paper by Y. Kaneko et al. on page 9394 .
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom