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微波合成聚羧酸超塑化剂的自由基聚合竞聚率
作者: 芳1 王栋民1 张力冉2 王启宝1  杰1 张川川1 
单位:(1. 中国矿业大学(北京)化学与环境学院 北京 100083 2. 清华大学土木工程系 北京 100084) 
关键词:微波合成 竞聚率 聚羧酸超塑化剂 分散性能 
分类号:TU528
出版年,卷(期):页码:2018,46(8):1103-1110
DOI:
摘要:
运用微波法合成技术,以丙烯酸(AA)、甲基烯基聚氧乙烯醚(TPEG)为主要原料,微波合成超塑化剂(MAS-PC)。通过微波与传统加热体系下竞聚率的计算,解释两种体系下合成聚羧酸超塑化剂系列结构的本质差异。运用化学滴定法测定共聚物组成,通过Yezreielv Brokhina Roskin (YBR)法、Kelen Tudos (K-T)法求得单体竞聚率值,对比分析了MAS-PC与传统水浴加热法合成的聚羧酸超塑化剂(CHS-PC)的红外光谱、分子量及其分布、阴离子电荷密度及其竞聚率。结果表明:MAS-PC的质均分子量大于CHS-PC的,且MAS-PC的转化率更高;与CHS-PC相比,MAS-PC对新拌浆体絮凝结构拥有更好的分散性能;采用YBR法及K-T法,MAS-PCE的竞聚率分别为0.170与0.155,更接近于交替共聚,均优于CHS-PCE的竞聚率0.307与0.294。
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参考文献:
[1] SAKAI E, KASUGA T, SUGIYAMA T, et al. Influence of superplasticizers on the hydration of cement and the pore structure of hardened cement[J]. Cem Concr Res, 2006, 36(11): 2049–2053. 
[2] 金钦汉. 微波化学[M]. 北京: 科学出版社, 2001. 
JIN Qinhan., Microwave Chemistry (in Chinese). Beijing: Science Press, 2001.
[3] TIERNEY J P, LIDSTRÖm P. Microwave Assisted Organic Synthesis[M]. UK: Blackwell Publishing Ltd, 2009.
[4] NADENDLA R R, SREENIVASA B P, NARENDRA A, et al. Microwave assisted organic synthesis[J]. Chem Inform, 2004, 35(35): 44–74.
[5] KAPPE C O. Controlled microwave heating in modern organic synthesis[J]. Angew Chem, 2004, 43(46): 6250–84.
[6] MADRAS G, KARMORE V. Evolution to similarity solutions for polymerization and depolymerization with microwave radiation[J]. Polym Int, 2001, 50(12): 1324–1330.     
[7] 王志, 沈家瑞. 微波技术在高分子材料加工中的应用[J]. 高分子通报, 1997(2): 113–117.
WANG Zhi, SHEN Jiarui. Bull Polym (in Chinese), 1997, (2): 113–117.
[8] MALLAKPOUR S, RAFIEE Z. Application of microwave-assisted reactions in step-growth polymerization: A Review[J]. Iran Poly J, 2008, 17(12): 907–935.
[9] ZHANG C, LIAO L, GONG S S. Recent developments in microwave-assisted polymerization with a focus on ring-opening polymerization[J]. Green Chem, 2007, 9(4): 303–314. 
[10] 张力冉. 微波合成聚羧酸超塑化剂性能/热—非热效应研究[D]. 北京: 中国矿业大学(北京), 2015.
ZHANG Liran. Study on the performance /thermal-athermal effect of microwave synthsis of polycarboxylic ether superplasticizer[D]. Beijing: China University of Mining and Technology (Beijing), 2015
[11] FARAGUNA F, SIUC V, VIDOVI? E, et al. Reactivity ratios and properties of copolymers of 2-ethoxyethyl methacrylate with dodecyl methacrylate or styrene[J]. J Polym Res, 2015, 22(12): 1–11. 
[12] SILVA M A D, GALLAND G B. Synthesis and characterization of ethylene-propylene-1-pentene terpolymers[J]. Polym Sci Part A: Polym Chem, 2008, 46(3): 947–957.
[13] PASICH M, HENZEL N, MATLENGIEWICZ M. Sequence Distribution of Poly(methyl acrylate) by Incremental Calculation[J]. Int J Polym An Charact, 2013, 18(2): 105–118.
[14] SIOLEK M, MATLENGIEWICZ M. Reactivity ratios of butyl acrylates in radical copolymerization with methacrylates[J]. Int J Polym Anal Charact, 2014, 19(3): 222–233.  
[15] BOAKYE G, STUCK R, GEREMIA K, et al. Functionalized poly(ether ether ketone) analogs via reactivity ratio controlled polycondensation[J]. Polymer, 2015, 72(9): 264–270.
[16] 李慧慧, 李传宝, 韩娜, 等. 溶液聚合体系中丙烯腈和N-乙烯基咪唑单体竞聚率的测定[J]. 高分子材料科学与工程, 2015, 31(1): 37–40. 
LI Huihui, LI Chuanbao, HAN Na. Polym Mater Sci Eng (in Chinese), 2015, 31(1): 37–40.
[17] 刘晓, 王子明, 朱洁, 等. 新型酰胺结构聚羧酸高性能减水剂的制备与表征[J]. 硅酸盐学报, 2013(8): 1079–1086. 
LIU Xiao, WANG Ziming, ZHU Jie. J Chin Ceram Soc, 2013, 41(8): 1079–1086.
[18] LEI L, PLANK J. Synthesis and Properties of a Vinyl Ether-Based Polycarboxylate Superplasticizer for Concrete Possessing Clay Tolerance[J]. Ind Eng Chem Res, 2014, 53(3): 1048–1055.
[19] PLANK J, SACHSENHAUSER B. Experimental determination of the effective anionic charge density of polycarboxylate superplasticizers in cement pore solution[J]. Cem Concr Res, 2009, 39(1): 1–5.
 
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