نتایج جستجو برای: polybiphenyl alkylene
تعداد نتایج: 169 فیلتر نتایج به سال:
2014 The anisotropy of the diamagnetic susceptibility, the density and the entropy change at the nematicisotropic transition of a number of structurally related Schiff’s bases are reported. Order parameters have been calculated from the anisotropies of the susceptibility. The results indicate that there is a close correspondence between the order parameter and the relative volume change at the ...
Selective Proton Transport In article number 2215109, Tongwen Xu, Liang Ge, Xingya Li, and co-workers report a series of dibenzo-18-crown-6 functionalized sulfonated poly(biphenyl alkylene) membranes. The membranes possess synergistic hydrophilic networks induced by bi-functional sites (crown ether sulfonic-acid group), increasing selective proton transport, providing efficient acid recovery in...
The use of ionic liquids (ILs) as organocatalysts is reviewed for transesterification reactions, specifically for the conversion of nontoxic compounds such as dialkyl carbonates to both linear mono-transesterification products or alkylene carbonates. An introductory survey compares pros and cons of classic catalysts based on both acidic and basic systems, to ionic liquids. Then, innovative gree...
Materials based on biodegradable polyesters such as poly(butylene terephthalate) (PBT) 20 or poly(butylene terephthalate-co-poly(alkylene glycol) terephthalate) (PBTAT) have potential 21 application as pro-regenerative scaffolds for bone tissue engineering. Herein is reported the 22 preparation of films composed of PBT or PBTAT and an engineered spider silk protein, 23 (eADF4(C16)), that displa...
Materials based on biodegradable polyesters, such as poly(butylene terephthalate) (PBT) or poly(butylene terephthalate-co-poly(alkylene glycol) terephthalate) (PBTAT), have potential application as pro-regenerative scaffolds for bone tissue engineering. Herein, the preparation of films composed of PBT or PBTAT and an engineered spider silk protein, (eADF4(C16)), that displays multiple carboxyli...
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