| 新型羧酸类梳型接枝共聚物超塑化剂的应用性能研究 |
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| 引用本文： | 冉千平,游有鲲,丁蓓,刘加平. 新型羧酸类梳型接枝共聚物超塑化剂的应用性能研究[J]. 化学建材, 2003, 19(6): 44-46 |
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| 作者姓名： | 冉千平 游有鲲 丁蓓 刘加平 |
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| 作者单位： | 江苏省建筑科学研究院江苏博特新材料有限公司，江苏省建筑科学研究院江苏博特新材料有限公司，江苏省建筑科学研究院江苏博特新材料有限公司，江苏省建筑科学研究院江苏博特新材料有限公司 江苏南京210008，江苏南京210008，江苏南京210008，江苏南京210008 |
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| 基金项目： | 科技部中小型企业科技创新基金项目资助(02C26213210067) |
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| 摘 要： | 本文应用高分子材料分子设计原理,构筑了一种被用作混凝土超塑化剂的羧酸系低分子量梳型接枝共聚物,采用一种高活性的改性剂对工业聚乙二醇进行改性,然后采用高效催化剂在无溶剂方式下进行接枝,合成出具有聚合活性的功能性大单体,后通过高效、经济的水相自由基聚合法来制备梳型接枝共聚物超塑化剂,并讨论了该聚合物在混凝土中的应用性能。
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| 关 键 词： | 羧酸系 梳型 接枝共聚物 超塑化剂 分子设计 高强混凝土 |
Study of Applied Performance in Concrete of Carboxylic Type Comb-Grafted Copolymer Superplasticizer |
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| RAN Qian-ping Jiangsu Research Institute of Building Sciences. Study of Applied Performance in Concrete of Carboxylic Type Comb-Grafted Copolymer Superplasticizer[J]. Chemical Materials for Construction, 2003, 19(6): 44-46 |
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| Authors: | RAN Qian-ping Jiangsu Research Institute of Building Sciences |
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| Affiliation: | RAN Qian-ping Jiangsu Research Institute of Building Sciences |
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| Abstract: | Based on molecular design theory of polymer materials, a kind of carboxylic type comb-grafted copolymer with low molecular weight used for concrete was designed. Polyethylene glycol(PEG) was modified with highly active modifier, then comb-grafted with high range catalyst under solvent-free conditions to synthesize functional macromonomer with polymerizability and finally comb-grafted copolymer superplasticizer was prepared with macromonomers in highly efficient and economical aqueous copolumerization process. Applied performance of this copolymer in concrete was discussed. |
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| Keywords: | carboxylic type comb-grafted copolymer superplasticizer molecular design high strength concrete |
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