1984 — 1990 |
Heiney, Paul |
N/AActivity Code Description: No activity code was retrieved: click on the grant title for more information |
Presidential Young Investigator Award @ University of Pennsylvania |
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1989 — 1998 |
Smith, Amos Heiney, Paul |
N/AActivity Code Description: No activity code was retrieved: click on the grant title for more information |
Discotic Liquid Crystals @ University of Pennsylvania
They propose to conduct a three-year study of the structure and properties of discotic liquid crystals and liquid crystal polymers. Both known and new compounds will be synthesized, purified, and characterized optically and thermodynamically. Their structures will then be studied via x-ray diffraction, with particular emphasis on single-domain, high resolution studies of the columnar phases, in a suspended strand geometry. Discotic liquid crystals are typically composed of molecules with a rigid, disk-shaped core, and 4-8 flexible alkyl tails. In addition to orientationally ordered nematic phases, these molecules can order into columnar structures, with long range two-dimensional positional order of the columns but only short range order along each column; such columnar phases can be thought of as complementing the one-dimensional smectic phases formed by many rod-like mesogens. Although discotics have been studied for over a decade, little is known about the structural order, conditions for stability, and phase transitions of these unusual materials. The materials to be studied include: a) hexa-n- alkylthiotriphenylene and related analogs, which display an unusual transition from a disordered columnar phase to a closely related helical incommensurate crystalline phase; b) phthalocyanine and related organometallic liquid crystalline compounds, which have potentially important applications as anisotropic organic conductors; and c) discotic liquid crystal polymers incorporating a variety of mesogenic units, including triphenylene, phthalocyanine, and "Tubular" cores.
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1997 — 1998 |
Heiney, Paul A |
P41Activity Code Description: Undocumented code - click on the grant title for more information. |
Structural Studies of Optically Rubbed Polymers
spectrometry; biomedical resource; bioengineering /biomedical engineering; biological products;
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0.914 |
2001 — 2005 |
Degrado, William (co-PI) [⬀] Percec, Virgil [⬀] Heiney, Paul Winey, Karen (co-PI) [⬀] Kamien, Randall (co-PI) [⬀] |
N/AActivity Code Description: No activity code was retrieved: click on the grant title for more information |
Nse/Nirt: Single Molecule Functional Nanostructures @ University of Pennsylvania
This award is in response to the Nanoscience and Engineering (NSE) solicitation(NSF-00-119) and involves a nanoscience Interdisciplinary Research Team (NIRT) at the University of Pennsylvania with broad-ranging national and international collaborations. It is being co-supported by the Polymers Program of the Division of Materials Research (DMR), the Special Programs of the Division of Chemistry (CHE), and the Interfacial, Transport and Thermodynamic Processes Program of the Division of Chemical & Transport Systems (CTS). %%% The ability to transition nanoscience and engineering (NSE) research to nanotechnology will depend on the development of efficient new synthetic methods to produce monodisperse nanoscale objects. To this end, the primary goal of this Nanoscale Interdisciplinary research team (NIRT) is to enable a rational approach to the design and synthesis of libraries of complex functional monodisperse objects of well-defined shapes, dimensions up to the wavelength of light, surface, and internal compartmentalized architecture. To accomplish this goal, the NIRT combines synthetic methodologies from Materials and the Life Sciences. The NIRT has assembled expertise in organic, macromolecular, supramolecular, and peptide synthesis, along with theory and modeling, and structural analysis by x-rays, TEM, and SFM. The team effort is amplified by exploiting established links with partners in industry and in Europe. Success will reveal the principles required for the construction of libraries of monodisperse self-assembling dendritic building blocks, to enable the hierarchical design of monodisperse single molecule functional nanostructures (SMN) with shape, chirality, internal and external structure, and function controlled at the level of precision currently available only in biological systems. The NIRT will investigate the structure and properties of these nanoscale objects at the level of the single molecule and in 2-D and 3-D assemblies. Novel applications of SMNs are elaborated that have potential to yield nanoscale devices for electronic, optical, chemical and medical technologies.
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2017 — 2018 |
Yodh, Arjun [⬀] Heiney, Paul Winey, Karen (co-PI) [⬀] Fakhraai, Zahra (co-PI) [⬀] Detsi, Eric (co-PI) [⬀] |
N/AActivity Code Description: No activity code was retrieved: click on the grant title for more information |
Mri: Acquisition of An Ultra-Small-Angle to Wide-Angle Dual Source X-Ray Scattering Instrument For Materials Characterization @ University of Pennsylvania
This award supports the purchase of a state-of-the-art X-ray scattering instrument that will be operated as an open-access facility within the Laboratory for Research on the Structure of Matter (LRSM), host of an NSF-funded MRSEC at the University of Pennsylvania (Penn). The Xeuss 2.0 from Xenocs allows the structural characterization over length scales from 0.09 to 600 nm and thus facilitates study of hierarchical structures in a wide range of hard and soft materials. The anticipated scope of materials to be studied includes metals, ceramics, plastics, biological tissue, and novel combinations of these. The instrument will also play a vital role in the materials education and training of the many high school, undergraduate and graduate students, visiting scientists, post-doctoral associates and local high school teachers who participate in LRSM programs. The facility will also develop and administer workshops and online training materials to promote its broad use by beginners and to fully develop expert-users and thus promote knowledge exchange and technology transfer. The open-access facility will be used by scientists and engineers from local companies and colleges/universities to advance their research. Besides providing unique training in fields critical for US technological competitiveness, the discoveries and understanding facilitated by the new instrumentation will underpin future technologies, thereby informing industry, stimulating the economy, and offering benefits to society at large.
This grant enables the purchase of a state-of-the-art X-ray scattering instrument for an open-access facility within the Laboratory for Research on the Structure of Matter (LRSM), host of an NSF-funded MRSEC at the University of Pennsylvania (Penn). The Xeuss 2.0 by Xenocs enables materials characterization across an extraordinarily wide range of cutting-edge research programs at Penn and in the Philadelphia/Delaware-Valley region. The dual Cu-Mo source and adjustable sample to detector distances provide structural information at both high and low spatial resolution across a wide range of length scales (0.09 to 600 nm). An assortment of sample environments enables materials to be manipulated in situ and operando to probe their structural evolution in response to temperature, tensile stress and electric/magnetic fields, even in humid and liquid environments. Thus, the instrument will advance research on the synthesis, fabrication, processing, and assembly of a wide range of materials systems, and will provide crucial insight about structure relevant to their chemical, electrical, magnetic, mechanical, optical, thermal, and transport properties. The anticipated materials usage portfolio includes nanoporous metals for catalysis and energy storage; nanocrystals, nanorods, and nanocrystal superlattices for light harvesting; polymer nanocomposite films for thermal management, optical properties, and scratch resistance; acid- and ion-containing polymers displaying micro-phase separation for ion transport; dendrons, dendrimers, and their self-assembled structures; hierarchical polymer-based films for controlled wetting; chromonic liquid crystals with novel self-assembled structures and phase transitions; inorganic microlaminated thin films wherein fabrication methods control magnetic properties; thin film molecular glasses with controlled stability and toughness; hierarchical protein structures in squid lenses and other tissues; polycarbonates in ionic liquids to manipulate chemical reactivity; and oriented protein films for electromechanical coupling. The new instrumentation is critical for at least 17 research groups, including 12 from Penn spanning 7 academic departments, and 3 from local universities. Additionally, the instrument will advance proprietary/open-publication research of nearby industrial partners. The Xeuss 2.0 will play a vital role in the materials education and training of the many high school, undergraduate and graduate students, visiting scientists, post-doctoral associates and local high school teachers who participate in LRSM programs.
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