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Russ Hall - Border
No full textBlack and white photo of the front of Russ Hall with trees bordering the edges of the photo.https://digitalcommons.pittstate.edu/russbuilding/1189/thumbnail.jp
Carney Hall
No full textBlack and white photo of Carney Hall as seen from the Oval. A sculpture sits in front of one of the trees.https://digitalcommons.pittstate.edu/ch-hw/1015/thumbnail.jp
Carney Hall, 1922
No full textBlack and white photo of Carney Hall taken straight out from the front entrance. Only one tree is planted at this time. Featured in the 1922 Kanza.https://digitalcommons.pittstate.edu/ch-hw/1038/thumbnail.jp
Auditorium, Seating
No full textBlack and white photo of the Auditorium as seen from the stage. The seats are empty.https://digitalcommons.pittstate.edu/ch-hw/1043/thumbnail.jp
Carney Hall, Color
No full textColor photo of Carney Hall. Students are in the Oval and by the building. Likely the 1970s.https://digitalcommons.pittstate.edu/ch-hw/1051/thumbnail.jp
Carney Hall, Color
No full textColor photo of Carney Hall. Likely the 1970s.https://digitalcommons.pittstate.edu/ch-hw/1053/thumbnail.jp
Harmon, Stephen, collection, 1960-2020
Get PDFThe Stephen Harmon Collection consists of the career and professorial works of Stephen Harmon consisting of his papers, classes, bibliographies, journals, magazines, leading up to his career at Pittsburg State University.
Stephen A. Harmon was born on June 15, 1945 in St. Louis, MO to Jim and Alice Harmon. In 1968, after marrying Fritzi Drosten, Harmon and Drosten moved to San Francisco. Dr. Stephen Harmon received his B.A. from San Francisco State University in the Spring of 1979 and he received his Master’s degree in June 1981. At SFSU, he spent a year in Madrid, Spain, studying at the Complutense University of Madrid. From Spain, he taught English in Japan and traveled across the Trans-Siberian Railroad. When starting his Ph.D, Dr. Harmon received his first Fulbright scholarship in 1983 traveling to Bamako, Mali. While researching his thesis he met his second wife Bintou Traore. While working towards his Ph.D., Dr. Harmon was a Teaching Assistant at UCLA from 1984 - 1987. He completed his Ph.D. in West African Islamic history at the University of California at Los Angeles in December 1988. Dr. Harmon got his first job as a Visiting Associate Professor at SUNY-College. After one academic year, Dr. Harmon then became an Associate Professor at Arkansas State University from 1989 - 1994. In 1990, Dr. Harmon received his second Fulbright scholarship and traveled back to Bamako, Mali. After his stay at ASU, Dr. Harmon then became an Associate Professor of African and Middle Eastern history at Pittsburg State University. In 2003, he earned a grant to internationalize the curriculum at Pittsburg State that helped lay the foundation for Pittsburg State’s PSU in Paraguay program, part of the Kansas Paraguay Partnership. He also worked in conjunction with PSU’s Military Science program, preparing upcoming soldiers with the cultural and historical background for their service in the Middle East. In 2008, Dr. Harmon gave a talk about rethinking Terrorism at a UN Workshop in Italy. During his stay, Dr. Harmon led student groups to Europe and South America. Harmon married Olive Sullivan in 2014. Dr. Harmon passed away on December 26, 2020, at Via Christi Hospital, Pittsburg.https://digitalcommons.pittstate.edu/fa/1360/thumbnail.jp
Synthesis of Eugenol-Based Polyols via Thiol−Ene Click Reaction and High-Performance Thermosetting Polyurethane Therefrom
Get PDFThe thiol−ene click reaction to prepare biobased polyols is a strategy to promote the green and environmental protection of polyurethane. The excessive usage of thiol and low conversion of carbon−carbon double bonds (C=C) would severely limit the properties of polyurethane (PU). In this work, a set of eugenol-based polyols were prepared via the thiol−ene click reaction. Interestingly, the conversion of the C=C was nearly 100% at the eugenol and various thiol compounds (-SH) in a stoichiometric ratio without excess of -SH. Then, the prepared polyols were reacted with diphenylmethane-diisocyanate (MDI), followed by a series of structure adjustable thermosetting polyurethane networks with colorless transparency, high glass transition temperature (Tg), and good mechanical properties being obtained. In particular, the tensile strength was up to 54.88 MPa, and Tg can be adjusted from 36.45 to 77.21 °C. Moreover, it is revealed that the compounds with an allyl structure are conducive to the efficient click reaction, and its application in PU can be greatly extended
Influence of Keratin on Epoxidized Linseed Oil Curing and Thermoset Performances
Get PDFThe study investigates the synergistic potential of keratin, a protein sourced from chicken feathers, in conjunction with a biobased formulation comprising epoxidized linseed oil (ELO) and dodecenylsuccinic anhydride (DDSA). Through techniques such as differential scanning calorimetry (DSC) and in-situ Fourier transform infrared (FT-IR) spectroscopy, the researchers analyze the influence of keratin on the cross-linking process of ELO, elucidating its chemical role in network formation. Findings reveal that keratin exerts a positive influence on various critical parameters of the network, including its glass transition temperature, storage modulus, and tensile strength. This suggests that the incorporation of keratin enhances the overall performance and mechanical properties of the material. Moreover, the study underscores the potential of keratin as a sustainable resource for developing industrially applicable materials, particularly by repurposing chicken feather waste from the food industry. In essence, the research underscores the promising prospects of utilizing keratin alongside biobased compounds like ELO and DDSA to create sustainable materials with enhanced properties. By harnessing natural proteins in this manner, the study contributes to the advancement of eco-friendly materials with practical industrial applications
Soybean Oil-based Adhesives: Effect of Aliphatic Diols on the Properties of Adhesives
Get PDFThe development of low-cost bio-based formaldehyde-free adhesives has aroused widespread interest in the wood adhesive industry. The usage of adhesives that contain urea-formaldehyde or phenol formaldehyde leads to environmental issues. Therefore, bio-based renewable resources are a better option to use as bio-based polyols instead of petroleum-based polyols. Among all renewable resources, plant oils are the most popular biobased resource for replacing such conventional polyols. Here, in this research work, soybean oil polyol (SOP) was used to synthesize polyurethane (PU) adhesive. For studying adhesion strength, three different aliphatic diols (EDO, BDO, and HDO) with increasing chain length were used as crosslinking reagents. For studying mechanical strength, different wt.% of diols were used to synthesize PU adhesives. The dry lap shear strength of these PU adhesives was observed on two different coupons (oak wood and stainless steel). Interestingly, on oak wood, the mechanical strength was increased from 3 MPa to 6.36 MPa after incorporating BDO which is the highest tensile strength among all the other adhesive samples. Thermal properties were studied by TGA and DSC. A solubility test was also done to check the solvent\u27s effect on these PU adhesives and no major changes were observed in water thus indicating the hydrophobic nature of adhesive samples. After being immersed in different solvents for 24 hours, there were no notable modifications observed in the FT-IR spectra of these PU materials. This work provides a sustainable alternative to petroleum-based adhesives with good mechanical and physical properties