高分子聚合物近年來廣泛應用於水泥基材以改善其性能，然其成效上仍有工作性差、耐久性不佳及成本較高等缺點，使得聚合物發展受限。因此，如何研製新型聚合物以克服前述不利因素，將有助於擴大聚合物改質水泥基材之應用範圍。
本研究在考量成本及施工條件影響最小情況下，透過有利工作性之丙烯酸聚合物與乙醇、乙二醇、二乙二醇、月桂醇及硬脂醇等5種醇類進行酯化反應。在考量聚合物組成成分、劑量的添加及相容性情況下，製作丙烯酸酯聚合物(Polyacrylic ester , PAE)，並針對丙烯酸酯組成成分及添加量對聚合物改質水泥基材的流動性、物理性質、力學性質、耐久性及孔隙結構等方面進行評估。綜合評估試驗結果，乙二醇反應生成之丙烯酸酯聚合物，其改質成效為5種醇類最佳，且乙二醇反應生成之丙烯酸酯聚合物又以酸、醇莫爾比為0.2時，成效最佳。新拌性質方面，隨聚合物添加量增加，水泥基材流動性亦隨之增加；硬固性質則以聚合物添加量0.1%為最佳，抗壓強度相較控制組可提升7~12%，吸水率、抗彎強度、黏結強度亦較控制組優良。此外，快速氯離子穿透試驗結果顯示丙烯酸酯聚合物的添加降低了水泥基材的氯離子穿透量； SEM觀測也顯示硬固後的聚合物改質水泥基材於孔隙結構形成薄膜，有助於提升混凝土之耐久性。但由於本研究在應用上，僅進行特定試驗及針對Ⅰ型波特蘭水泥進行改質，因此仍需更多資料，以評估其整體性質。

In recent years, polymer has been used for modifying cementitious materials widely in order to improve its performance. However, the polymer-modified cementitious materials still have many shortcomings, such as low workability, poor durability and high costs. In order to improve the above-mentioned defects of the polymer-modified cementitious materials, studying and making a new kind of polymer is important.
Taking the expense and the construction condition into consideration and making the least influence on the research, we used different ethanol, ethylene glycol, diethylene glycol, lauryl alcohol and stearyl alcohol to carry on the etherification in this research. The Polyacrylic ester (PAE) was made under the consideration of the components, the dosage increase and the compatible situation. The polymer-modified cementitious materials were executed to evaluate the properties of flowability, mechanics, durability and pore structure with various PAE composition and dosages. The test results showed that the Polyacrylic ester (PAE) which was made from five species of ethylene glycol had the best effect, and that the optimum conditions of the reaction were determined according to the molar ratio of acrylic acid to ethylene glycol by 1: 0.2. As far as the workability was concerned, the flowability was increased by adding the amount of PAE. As to the hardened property, if PAE was dosed with 0.1% by weight of cement, the compressive strength of polymer-modified cementitious materials could improve up to 7％~12％ of the OPC. The polymer-modified cementitious materials would make better water absorption, flexural strength and adhesion strength. Besides, the penetration of polymer modified concrete was lowered by adding RCPT. SEM micrographs showed that hardened Polymer formed the film layers in the cement-based composites. This sealed structure helped to improve the durability of the cementitious materials. But in this research, we only used typeⅠPortland cement to proceed experiments, so it still needed more information to evaluate the whole effects.

1.Fowler, D.W., “Polymer in concrete:a vision for the 21st century,” Cement and Concrete Composites, Vol 21, No. 5, pp. 449-452 (1999).
2.Ohama, Y., “Recent progress in concrete-polymer composites,” Advn Cem Bas Mat., Vol. 5, pp. 31-40 (1997).
3.Ohama, Y., “Polymer-based admixyures,” Cement and Concrete Composites, Vol. 20, NO. 2, pp. 189-212 (1998).
4.The Dow Chemical Company, http://www.dow.com/ .
5.徐武軍，「高分子材料導論」，台北五南圖書出版(股)公司 (2004)。
6.Afridi, M. U. K., Ohama, Y., Demura, K., and Iqbal, M. Z.,“Development of polymer films by the coalescence of polymer particles in powdered and aqueous polymer-modified mortars,” Cement and Concrete Research, Vol. 33, No. 11, pp. 1715-1721 (2003).
7.Schulze, J., and Killermann, O., “Long-term performance of redispersible powders in mortars,” Cement and Concrete Research, Vol. 31, No. 3, pp. 357-362 (2001).
8.Afridi, M. U. K., Ohama, Y., Demura, K., and Iqbal, M. Z.,“A note on the comparison of crack resistance of Ca(OH)2 crystals of unmodified and polymer-modified mortars in carbonated atmosphere,” Cement and Concrete Research, Vol. 31, No. 11, pp. 1643-1645 (2001).
9.Al-Zahrani, M. M., Maslehuddin, M., Al-Dulaijan, S. U., and Ibrahim, M., “Mechanical properties and durability characteristics of polymer- and cement-based repair materials,” Cement and Concrete Composites, Vol. 25, No. 4, pp. 527-537 (2003).
10.Afridi, M. U. K., Ohama, Y., Demura, K., and Iqbal, M. Z.,“Hydrogarent-type cubic crystals in polymer-modified martars,” Cement and Concrete Research, Vol. 27, No.12, pp. 1787-1789 (1997).
11.Chandra, S., and Flodin, P., “Interactions of polymers and organic admixtures on portland cement hydration,” Cement and Concrete Research, Vol. 17, No. 6, pp. 875-890 (1987).
12.Sakai, E., and Sugita, J., “Composite mechanism of polymer modified cement,” Cement and Concrete Research, Vol. 25, No. 1, pp. 127-135 (1995).
13.Mindess, S., Young, J. F., and Darwin, D., Concrete. 2nd ed., Prentice-Hall, Inc., Upper Saddle River, New Jersey, pp. 583-598 (2002).
14.Fu, X., and Chung, D. L., “Submicron carbon filament cement-matrix composites for electromagnetic interference shielding,” Cement and Concrete Research, Vol. 26, No. 10, pp. 1467-1472 (1996).
15.Fichet, R. O., Gauthier, C., Clamen, G., and Boch, P., “Microstructural aspects in a polymer-modified cement,” Cement and Concrete Research, Vol. 28, No. 12, pp. 1687-1693 (1998).
16.Rha, C. Y., Kim, C. E., Lee, C. S., Kim, K. I., and Lee, S. K., “Preparation and characterization of absorbent polymer-cement composites,” Cement and Concrete Research, Vol. 29, No. 2, pp. 231-236 (1999).
17.Silva, D. A., and Monteiro, P. J. M., “The influence of polymers on the hydration of portland cement phases analyzed by soft X-ray transmission microscopy,” Cement and Concrete Research, Vol. 36, No. 8, pp. 1501-1507 (2006).
18.Silva, D. A., John, V. M., Ribeiro, J. L. D., and Roman, H. R., “Pore size distribution of hydrated cement pastes modified with polymers,” Cement and Concrete Research, Vol. 31, No. 8, pp. 1177-1184 (2001).
19.Kim, J. H., and Robertson, R. E., “Prevention of air void formation in polymer-modified cement mortar by pre-wetting,” Cement and Concrete Research, Vol. 27, No. 2, pp. 171-176 (1997).
20.Gorninski, J. P., Molin, D. C., and Kazmierczak, C. S., “Study of the modulus of elasticity of polymer concrete compounds and comparative assessment of polymer concrete and portland cement concrete,” Cement and Concrete Research, Vol. 34, No. 11, pp. 2191-2195 (2004).
21.Jenni, A., Holzer, L., Zurbriggen, R., and Herwegh, M., “Influence of polymers on microstructure and adhesive strength of cementitious tile adhesive mortars,” Cement and Concrete Research, Vol. 35, No. 1, pp. 35-50 (2005).
22.Beeldens, A., Monteny, K., Vincke, E., Belie, N. D., Gemert, D. V., Taerwe, L., and Verstraete, W., “Resistance to biogenic sulphuric acid corrosion of polymer-modified mortars,” Cement and Concrete Composites, Vol. 23, No. 1, pp. 47-56 (2001).
23.Martinez-Ramirez, S., Zamarad, A., Thompsonb, G. E., and Moore, B., “Organic and inorganic concrete under SO2 pollutant exposure,” Cement and Concrete Research, Vol. 37, No. 10, pp. 933-937 (2002).
24.Vincke, E., Wanseele, E. V., Monteny, J., Beeldens, A., Belie, N. D., Taerwe, L., Gemert, D. V., and Verstraete, W., “Influence of polymer addition on biogenic sulfuric acid attack of concrete,” International Biodeterioration & Biodegradation, Vol. 49, pp. 283 - 292 (2002).
25.Monteny, J., Belie, N., Vincke, E., Verstraete, W., and Taerwe, L., “Chemical and microbiological tests to simulate sulfuric acid corrosion of polymer-modified concrete,” Cement and Concrete Research, Vol. 31, No. 9, pp. 1359-1365 (2001).
26.馬齊文，「粉體組成對活性粉混凝土微巨觀力學性質之影響與高分子改質之效益」，國立台灣大學土木工程學研究所博士論文 (2005)。
27.Rodrigues, F. A., and Joekes, I., “Macro-defect free cements- a new approach,” Cement and Concrete Research, Vol. 28, No. 6, pp. 877-885 (1998)..
28.Santos, R. S., Rodrigues, F. A., Segre, N., and Joekes, I., “Macro-defect free cements Influence of poly(vinyl alcohol), cement type, and silica fume,” Cement and Concrete Research, Vol. 29, No. 5, pp. 747–751 (1999).
29.Schulze, J., “Influence of water-cement ratio and cement content on the properties of polymer-modified mortars,” Cement and Concrete Research, Vol. 29, No. 6, pp. 909-915 (1999).
30.Drabik, M., Mojumdar, S. C., and Galikova, L., “Change of thermal events of macro defect-free (MDF) cements due to the deterioration in the moist atmosphere,” Cement and Concrete Research, Vol. 31, No. 5, pp. 743-747 (2001).
31.Walters, D. G., “Comparison of latex-modified portland cement mortars,” ACI Materials Journal, Vol. 87, No. 4, pp. 371-377 (1990).
32.Gao, J. M., Qian, C. X., Wang, B., and Morino, K., “Experimental Study on Properties of Polymer-Modified Cement Mortars with Silica Fume,” Cement and Concrete Research, Vol. 32, No. 1, pp. 41-45 (2002).
33.林世堂，「水溶性樹脂對水泥基複合材料的早期收縮開裂敏感性能的巨、微觀探討」，國立海洋大學材料工程研究所博士資格考審查資料 (2007)。
34.郭文田，「添加強塑劑對水泥材料水化及其早期行為之影響」，國立中央大學研究所博士論文 (2000)。
35.Kantro, D. L., “Influence of water-Reducing admixtures on properties of cement paste - a miniature slump test,” Cement Concrete and Aggregates, Vol. 2, No. 2, pp. 95-108 (1980).
36.黃國祥，「羧酸強塑劑於水泥砂漿中最佳劑量之研究」，國立屏東科技大學土木工程系碩士論文 (2003)。