Index Catalog // ScholarsArchive@OSU

Natural and semi-synthetic compounds with biocidal activity against arthropods of public health importance

Creator:: Khasawneh, Mohammad A.
Abstract:: This study identified new compounds with pest control activities. The two sources of candidates that were followed here were the main heartwood extract of Alaska Yellow Cedar (AYC) constituents and several semi-synthetic counterparts. Five compounds were isolated and identified for the first time in AYC heartwood in this research: two...
Resource Type:: Dissertation
Full Text:: The author would like to express sincere appreciation to Prof. Joe J. Karchesy for his help, guidance

Low molecular weight polyphenols in Douglas-fir outer bark : extraction, isolation and structure determination

Creator:: Chen, Jie
Resource Type:: Masters Thesis
Full Text:: express special appreciation to my major professor, Joseph J. Karchesy, for his many helpful suggestions

Diarylheptanoid glycosides from red alder bark

Creator:: Chen, Jie, 1957-
Resource Type:: Dissertation
Full Text:: Joseph J. Karchesy, my major professor, for providing guidance, suggestions and facilities during my

Viscosity and bond quality of urea formaldehyde adhesive extended with acid modified and phosphorylated sago (Metroxylon sp)

Creator:: Sumadiwangsa, Suwardi
Abstract:: It was the goal of this research to determine if sago starch could be used to replace wheat flour as an adhesive extender of Urea-formaldehyde plywood adhesives through either chemical modification of the starch or modification of the adhesive formulation strategy. Guiding principles of the research would be that a...
Resource Type:: Dissertation

Essential oil components of Alaska cedar heartwood

Creator:: Xiong, Yeping
Abstract:: The essential oil of Alaska cedar heartwood is known to contain compounds which contribute to the remarkable durability of this species. While previous research has identified several compounds, a complete description of this oil, which has a "burnt-grape fruit" odor, has not been undertaken. In this research a profile of...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS First of all, I would especially like to thank my major professor Dr. Joseph J. Karchesy

Polyphenols from the bark of Douglas-fir and red alder

Creator:: Gonzalez-Laredo, Ruben Francisco
Abstract:: The objectives of this research were to isolate and determine the molecular structures of certain polyphenols in Douglas-fir and red alder barks. The compounds of interest in Douglas-fir were the lignans which are eventually incorporated into the outer bark phlobaphenes. Phlobaphenes are the red colored, alcohol soluble, water insoluble phenolic...
Resource Type:: Dissertation

The reaction of (+)-catechin with N-Hydroxymethylacetamide : a model for cross-linking PVA resins with tannins

Creator:: Wallace, Kathryn Anne
Abstract:: Equal molar amounts of (+)-catechin and N-Hydroxymethylacetamide were reacted under acidic conditions. Thin-layer chromatography (TLC) was used to monitor the reaction. The reaction products were isolated by column chromatography using Sephadex LH-20 and elution with 95 percent ethanol. Three reaction products isolated included one disubstituted and two monosubstituted compounds. The...
Resource Type:: Masters Thesis

Structural determination of a new carbohydrate-phenolic based resin coupled with urea

Creator:: Ghodoussi, Vahid
Abstract:: A resin was synthesized by reacting glucose with urea and phenol under acidic conditions. To better understand the structure of this polymer and the mechanism of its formation, this study was undertaken. It was observed that although the polymer backbone is comprised of a carbohydrate, glucose is not incorporated in...
Resource Type:: Dissertation

Douglas-fir inner bark procyanidins : sulfonation, isolation and characterization

Creator:: Bae, Youngsoo
Abstract:: See pdf
Resource Type:: Dissertation

Investigation of a new resin as an exterior adhesive to bond high moisture content veneers

Creator:: Clark, Randy Jon
Abstract:: A new carbohydrate-phenol based resorcinol resin (CPR resin) was synthesized by end capping a known carbohydrate-phenol based resole with resorcinol under basic reaction conditions. Synthetic parameters, such as duration of cook, pH, and the amount of resorcinol and formaldehyde were varied to produce resins with molecular weights (Mw) ranging from...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Natural and semi-synthetic compounds with biocidal activity against arthropods of public health importance

Low molecular weight polyphenols in Douglas-fir outer bark : extraction, isolation and structure determination

Diarylheptanoid glycosides from red alder bark

Viscosity and bond quality of urea formaldehyde adhesive extended with acid modified and phosphorylated sago (Metroxylon sp)

Essential oil components of Alaska cedar heartwood

Polyphenols from the bark of Douglas-fir and red alder

The reaction of (+)-catechin with N-Hydroxymethylacetamide : a model for cross-linking PVA resins with tannins

Structural determination of a new carbohydrate-phenolic based resin coupled with urea

Douglas-fir inner bark procyanidins : sulfonation, isolation and characterization

Investigation of a new resin as an exterior adhesive to bond high moisture content veneers

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