Polymers of intrinsic microporosity derived from novel disulfone-based monomers

Peer reviewed: YesNRC publication: Ye

Hydrocarbon/hydrogen mixed-gas permeation properties of PIM-1, an amorphous microporous spirobisindane polymer

Peer reviewed: YesNRC publication: Ye

High-performance carboxylated polymers of intrinsic microporosity (PIMs) with tunable gas transport properties

Peer reviewed: YesNRC publication: Ye

Gas transport behavior of mixed-matrix membranes composed of silica nanoparticles in a polymer of intrinsic microporosity (PIM-1)

Recently, high-free volume, glassy ladder-type polymers, referred to as polymers of intrinsic microporosity (PIM), have been developed and their reported gas transport performance exceeded the Robeson upper bound trade-off for O2/N2 and CO2/CH4. The present work reports the gas transport behavior of PIM-1/silica nanocomposite membranes. The changes in free volume, as well as the presence and volume of the void cavities, were investigated by analyzing the density, thermal stability, and nano-structural morphology. The enhancement in gas permeability (e.g., He, H2, O2, N2, and CO2) with increasing filler content shows that the trend is related to the true silica volume and void volume fraction.Peer reviewed: YesNRC publication: Ye

Genetic characterization of Measles Viruses in China, 2004

Genetic characterization of wild-type measles virus was studied using nucleotide sequencing of the C-terminal region of the N protein gene and phylogenetic analysis on 59 isolates from 16 provinces of China in 2004. The results showed that all of the isolates belonged to genotype H1. 51 isolates were belonged to cluster 1 and 8 isolates were cluster 2 and Viruses from both clusters were distributed throughout China without distinct geographic pattern. The nucleotide sequence and predicted amino acid homologies of the 59 H1 strains were 96.5%–100% and 95.7%–100%, respectively. The report showed that the transmission pattern of genotype H1 viruses in China in 2004 was consistent with ongoing endemic transmission of multiple lineages of a single, endemic genotype. Multiple transmission pathways leaded to multiple lineages within endemic genotype

Influence of Intermolecular Interactions on the Observable Porosity in Intrinsically Microporous Polymers

Peer reviewed: YesNRC publication: Ye

Linear high molecular weight ladder polymer via fast polycondensation of 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethylspirobisindane with 1,4-dicyanotetrafluorobenzene

Peer reviewed: YesNRC publication: Ye

Pure- and mixed-gas permeation properties of a microporous spirobisindane-based ladder polymer (PIM-1)

Peer reviewed: YesNRC publication: Ye

Copolymers of intrinsic microporosity based on 2,2',3,3'-tetrahydroxy-1,1'-dinaphthyl

Peer reviewed: YesNRC publication: Ye

Physical aging and mixed-gas transport properties of microporous polymers for gas separation applications

Peer reviewed: YesNRC publication: Ye