نتایج جستجو برای: poss
تعداد نتایج: 945 فیلتر نتایج به سال:
Novel azido-functionalized POSS were synthesized, which could serve as nanoprecursors for higher-order molecular construction of organic-inorganic hybrids via"click" chemistry.
New fluorinated polyhedral oligomeric silsesquioxane (F-POSS) structures possessing a high degree of hydrophobicity have been prepared via a facile corner-capping methodology.
Kaiwen Liang, Hossein Toghiani, and Charles U. Pittman Jr. Dave C. Swalm School of Chemical Engineering, Mississippi State University, MS 39762. Department of Chemistry, Mississippi State University, MS 39762. Carbon-carbon materials are traditionally designed for high temperature applications. Carbon-carbon materials are composites formed by impregnating continuous carbon fiber cloths or prefo...
Greta Thunberg, teenage climate advocate, notes the international response to COVID-19 has shown how governments can act in an emergency. ‘It is possible treat a crisis like crisis, it poss...
این رساله مشتمل بر دو قسمت اصلی می باشد که در قسمت اول واکنش چند جزئی میان واکنشگرهای مختلف مورد مطالعه قرار گرفته و در قسمت دوم سنتز و عامل دار کردن نانو ذره سیلسسکوئی اکسان بررسی شده است. قسمت اول شامل موارد زیر می باشد: واکنش دوجزئی برای سنتز بنزوتیازول¬ها، سنتز بنزوکسازول¬ها در حضور نانوکاتالیزگر سیلیکایی اسیدی sba-pr-so3h، سنتز اکسازولوپیریدین¬ها با استفاده از نانو کاتالیزگر بازی sba-pr-n...
The popularity of polyhedral oligomeric silsesquioxanes (POSS) for use in hybrid organic–inorganic materials and devices has grown the past two decades due to desirable properties such as good thermal stability biocompatibility, well their potential be functionalized a wide range applications, from polymer composites optoelectronics. Herein, role POSS photonic including sensing, bioimaging, opt...
Hybrid organic/inorganic hyper-cross-linked membranes based on imides covalently bonded with polyhedral oligomeric silsesquioxanes (POSS) have recently been developed for gas-separation applications under high pressure and/or temperature conditions. Their molecular sieving capabilities have been shown to depend on the nature of the organic dianhydride precursor. In the present work, realistic m...
We provide a domain-theoretic framework for possibility theory by studying possibility measures on the lattice of opens of a topological space. The powerspaces Poss(X) and Poss 0;1] (X) of all such maps extend to functors in the natural way. We may think of possibility measures as continuous valuations by replacing`+' with`_' in their modular law. The functors above send continuous maps to sup-...
To understand the hierarchical self-organization behaviors of soft materials as well as their dependence on molecular geometry, a series of AB n dendron-like molecules based on polyhedral oligomeric silsesquioxane (POSS) nanoparticles were designed and synthesized. The apex of these molecules is a hydrophilic POSS cage with 14 hydroxyl groups (denoted DPOSS). At its periphery, there are differe...
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