Ring-opening hydrolysis of epoxidized soybean oil in the presence of phosphoric acid was studied under varying experimental conditions. The influence of type and amount of solvents, phosphoric acid content and water content on the rate of ring-opening reactions and the characteristics of the derived products were studied. The soy-polyols prepared were characterized by determination of hydroxyl content, viscosity measurements, determination of average molecular weight and polydispersity index (GPC). The structural confirmation was done by FT-IR and 1 H-NMR spectroscopy. The study shows that under the reaction conditions employed, a substantial degree of oligomerization due to oxirane-oxirane, and/or oxiranehydroxyl reaction takes place. It is possible to synthesize soy-polyols having varying hydroxyl content and phosphate-ester functionality by controlling the type and amount of polar solvent and phosphoric acid content.

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The monolayer behaviors of poly(N-alkylmethacrylamides) with various pendant substituents, octyl (POMA), dodecyl (PDDMA), tetradecyl (PTDMA), hexadecyl (PHDMA), or octadecyl (PODMA), on the water surface and the properties of the Langmuir-Blodgett (LB) films were investigated. Among those polymers, PTDMA formed the most stable condensed monolayer. The PTDMA monolayer can be transferred successively onto solid supports such as quartz, glass, and silicon slide, giving Y-type uniform polymer LB films. It was found that PTDMA LB film could be effectively decomposed by deep UV irradiation and produced directly a positive fine pattern with high resolution without any development process. The sensitivity of the PTDMA LB film was remarkably enhanced with decreasing number of layers. This lithographic property of the LB film is expected to be applicable to a new type of positive photoresist for a deep UV excimer laser.