%0 Journal Article
%T Synthesis and Properties of Organic-Inorganic Hybrid Porous Polymers Obtained with Click Addition Reactions of Thiol-Functionalized Random Type Silsesquioxane by and Diacrylate or Diisocyanate Compounds
%A Tomoharu Miyanaga
%A Naofumi Naga
%J Open Journal of Polymer Chemistry
%P 1-20
%@ 2165-6711
%D 2020
%I Scientific Research Publishing
%R 10.4236/ojpchem.2020.101001
%X Organic-inorganic hybrid</span><b> </b><span style=\"font-family:Verdana;\">network polymers have been synthesized by
addition reaction of a thiol-functionalized random type silsesquioxane (SQ109)
and alkyl diacrylate or diisocyanate compounds. Thiol-ene reaction of SQ109 and
1,4-butanediol diacrylate (BDA) successfully yield porous polymer in toluene
initiated by azobis</span></span><span style=\"font-family:Verdana;\">(</span><span style=\"font-family:Verdana;\">isobutyronitrile</span><span style=\"font-family:Verdana;\">)</span><span style=\"font-family:Verdana;\"> (AIBN) at 60</span><span style=\"font-family:Verdana;\">&amp;deg;</span><span style=\"font-family:Verdana;\">C.
Morphology of the porous polymers was composed by connected globules, and the
diameter of the globules decreased with increasing in the monomer concentration </span><span style=\"font-family:Verdana;\">of</span><span style=\"font-family:Verdana;\"> the reaction </span><span style=\"font-family:Verdana;\">system</span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\">. By contrast, the reaction with 1,6-hexanediol diacrylate or </span><span style=\"font-family:Verdana;\">1,5-hexadiene yielded homogeneous clear gels.
Thermal analyses of SQ109-BDA</span><span style=\"font-family:Verdana;\"> porous polymers indicated that thermal
degradation of ester groups of BDA in the polymer network occurred at around
300</span></span><span style=\"font-family:Verdana;\">&amp;deg;</span><span style=\"font-family:Verdana;\">C. The porous polymer was also obtained </span><span style=\"font-family:Verdana;\">by</span><span style=\"font-family:Verdana;\"> the reaction </span><span style=\"font-family:Verdana;\">using</span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\"> a photo-initiator
(Irugacure184) at room temperature, and showed higher Young¡¯s modulus than the
corresponding porous polymer obtained with the reaction with AIBN due to the
small size of </span><span style=\"font-family:Verdana;\">the globules. Young¡¯s modulus
of SQ109-BDA porous polymer increased</span><span style=\"font-family:Verdana;\"> with </span><span style=\"font-family:Verdana;\">increasing in the monomer concentration </span></span><span style=\"font-family:Verdana;\">of</span><span style=\"font-family:Verdana;\"> the
reaction systems. Thioliso</span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\">cyanate addition reactions between SQ109 </span><span style=\"font-family:Verdana;\">and hexamethylene diisocyanate (HDI) or
methylenediphenyl
%K Silsesquioxane
%K Thiol
%K Diacrylate
%K Diisocyanate
%K Gel
%K Porous Polymer
%K Morphology
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=101547