Grafting of hyperbranched polyamidoamine (PAMAM) dendrimer onto ultrafine silica followed by the introduction of phosphonic acid groups onto branch ends was carried out. First an initiating site was incorporated into silica surface by reacting the silica silanol group with 3-aminopropyltriethoxysilane producing amino-functionalized silica. The free amine group content was controlled by varying ratios of methanol to water in the hydrolysis step of sol-gel reaction. Then grafting of PAMAM was performed by repetitive reactions between Michael addition of silica amino groups to methyl acrylate and amidation of the resulting terminal methyl ester groups with ethylenediamine. Amino group content in each generation was determined. This was found to be significantly lower than theoretical value due to unavoidable side reactions. After the G3.0 hyperbranched PAMAM grafted onto silica was synthesized phosphonic acids functionalization of the terminal amino groups by the Mannich type reaction was carried out. The phosphorylated hyperbranched PAMAM grafted silica was achieved and its application on cotton fabric to produce phosphonated cellulose was studied.

The purpose of this research is to study the factors affecting the students๛ achievement and to create the model of the achievement predictive equation on Research Methodology subject Rajamangala University of Technology Phra Nakhon Chotiwet Campus. This research is a correlation research. The population are the third year (4-year-Programme) students of Chotiwet Campus majoring in Food and Nutrition totaling 133. The results of the study revealed that there were two factors affecting the students๛ achievement on Research Methodology as follows : (1) cummulative grade point average and (2) students๛ problem of how to adjust to the study environment. The above-mentioned factors can be formed as model of the Research Methodology achievement predictive equation as follow yˆ = 11.079+3.349 x1 - 1.081 x7

The results revealed that the manager๛s opinions towards operation of quality control and inspection of auto-parts at a high level were lineworkers in car accessory production plant and other production plant. The opinions of the office workers towards operation of quality control and inspection of auto parts at a high level were lineworkers in car body production plant car accessory production plant and other production plant. When comparing the operation level of quality control and inspection of plants classified by types of vendors it was found that there was a significant difference at .05 level. The collected data were analyzed by SPSS program into percentage mean standard deviation t-test one-way ANOVA and multiple comparison.

The purpose of this research was to develop innovative cleaning and disinfection products in the situation of COVID-19 and to transfer the production technology of innovative cleaning and disinfection products. The innovative product developed is a semi-liquid alcohol gel. The sample group used in this study was volunteered consisting of 10 people. The research tool was the satisfaction assessment form technology transfer and the development of innovative cleaning and disinfection products in the situation of COVID-19. Data were analyzed using statistical software packages. The statistics used were mean and standard deviation. The results showed that. 1. Innovative cleaning and disinfection products in the situation of COVID-19 developed as an innovation of semi-liquid alcohol gel products. Which has a concentration of 73.0 % v/v 2. Most of the trainees were satisfied with the overall technology transfer. Both speakers places periods facilities knowledge and benefits from receiving services are high. 3. Most of the trainees were satisfied with the technology transfer pattern as well as the duration of the training. Product innovation process Product innovation can be put into practice and product innovation is a guide to careers at a high level.

This research aims to develop Thai herbal formulas for household cleaning products and reduce the use of chemicals by using kaffir lime herbs to extract essential oils by using a method of squeezing from the bark. The result is a dark green essential oil with a pleasant aroma when mixed with liquid hand soap and natural residues such as water extracted from silkworm cocoons to add moisture and lye to remove it. Reduce the use of chemical flavoring agents the use of coloring chemicals the use of moisturizing agents and the use of degreasers. In this research the formula for hand washing liquid soap using 80 ml. of essential oil from kaffir lime peel is the right amount resulting in liquid hand soap with a pH value of 7.3 which is the value that is in the standard for mixed liquid soap products. TIS 1403-2551 can inhibit the bacteria Staphylococcus aureus (S.aureus) a bacterium that can cause diarrhea in humans.