In this study, the effect of the addition of metal particles on the gelation properties of poly[1-(3,4-dimethoxyphenyl)-2-(4-trimethylsilylphenyl)acetylene] [poly(DMOTMSDPA)] and poly[1-phenyl-2-(4-trimethylsilylphenyl)acetylene] [poly(TMSDPA)] was examined. The addition of TaCl5, NbCl5, and MoCl5 to poly(DMOTMSDPA) and poly(TMSDPA) solutions afforded gels. However, the addition of Ta(OCH3)5 and Mo(OCH3)5 did not induce gelation. Lewis acids such as TaCl5, NbCl5, and MoCl5 can coordinate with the π-electrons from the polyacetylene backbone and lone pair of the methoxy groups. Mixed matrix membranes (MMMs) composed of poly(DMOTMSDPA) and these metal chlorides were fabricated by varying the amount of metal chloride. The metal chloride particles were uniformly dispersed in poly(DMOTMSDPA) because the polymer chains could interact with the metal chloride particles. The oxygen permeability of the MMMs composed of poly(DMOTMSDPA) was greater than that of pure poly(DMOTMSDPA). With the addition of 20 mol% of TaCl5, the oxygen permeability increased. In addition, the gas permeability of poly(TMSDPA) was increased by the addition of TaCl5. On the other hand, the gas selectivity values of MMMs were 1.8–3.1, suggesting that MMMs do not contain non-selective defects such as pinholes and interfacial voids in the matrix.
Polymer – Elsevier
Published: Mar 28, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera