Affiliation:
1. Key Laboratory for Specially Functional Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering East China University of Science and Technology Shanghai China
Abstract
AbstractPolyacetylenes with good performance in O2/N2 separation were reported. A series of cis‐helical poly(trialkylsilylethynylphenylacetylene)s (PSEPAs) with average molecular weight in the range of 105–106 g mol−1 are synthesized under the catalysis of [Rh(nbd)Cl]2. The free‐standing membranes are prepared from the solution of PSEPAs in chloroform. A rigid PSEPA membrane exhibits the tensile strength of 22.2 MPa, while a flexible PSEPA membrane shows an elongation at break of 44.2% at room temperature. Moreover, the rigid PSEPA membrane shows ultra‐high oxygen permeability of 3.09 × 105 Barrer. The results show that PSEPAs are potential polymers for the applications in O2/N2 separation field.
Funder
Fundamental Research Funds for the Central Universities