Influence of Molecular Mass of Isoprenyloxy Polyethylene Glycol on Monomer Sequence in Polycarboxylate Superplasticizers - 文章详情页

作者：

Li, Huiqun (Li, Huiqun.) | Yao, Yan (Yao, Yan.) (学者：姚燕) | Wang, Ziming (Wang, Ziming.)

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EI Scopus PKU CSCD

摘要：

A　series　of　carboxylate　superplasticizers　(PCEs)　with　various　chemical　structures　were　synthesized　via　free　radical　copolymerization　from　acrylic　acid　(AA)　and　isoprenyloxy　polyethylene　glycol　(IPEG,　E)　with　different　molecule　mass　(i.e.,　500,　1200,　and　2400g/mol).　The　molecular　weight　characters　and　monomer　sequences(AAA,　AAE,　EAE)　of　PCE　polymers　were　detected,　and　the　content　ratios　of　monomer　sequences　were　calculated.　The　adsorption　amount　and　dispersive　ability　of　PCE　with　different　monomers　sequences　were　also　measured.　The　results　indicate　that　PCE　prepared　by　IPEG　with　the　molecular　weight　of　2　400　g/mol　containing　a　higher　AAA　monomer　sequence　presents　a　lower　molecular　mass　distribution,　a　lower　adsorption　rate/amount,　and　excellent　water　reducing/retention　ability　to　cement　particles.　©　2019,　Editorial　Department　of　Journal　of　the　Chinese　Ceramic　Society.　All　right　reserved.

关键词：

Adsorption Aliphatic compounds Carboxylation Free radicals Molecular mass Molecular weight Monomers Polyethylene glycols Polyethylenes Synthesis (chemical)

作者机构：

[ 1 ] [Li, Huiqun]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Yao, Yan]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Yao, Yan]China Building Materials Academy, Beijing; 100024, China
[ 4 ] [Wang, Ziming]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

[wang, ziming]college of materials science and engineering, beijing university of technology, beijing; 100124, china

电子邮件地址：

wangziming@bjut.edu.cn

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