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A platform for research: civil engineering, architecture and urbanism
Polyether macromonomer containing Y-shaped side chain for synthesizing polycarboxylic acid concrete high-performance admixture and preparation method of polyether macromonomer
The invention relates to a polyether macromonomer containing a Y-shaped side chain for synthesizing a polycarboxylic acid concrete high-performance admixture and a preparation method of the polyether macromonomer, and the molecular structural formula of the polyether macromonomer containing the Y-shaped side chain is shown in the specification, wherein R1 is H or -CH3, R2 is -CH2, R3 is -CH2CH2, -CH2CH2CH2, -CHCH3CH2 or -CH2C(CH3)2, and m and n are equal to 5-50. The invention also provides a preparation method of the polyether macromonomer containing the Y-shaped side chain. The polyether macromonomer containing the Y-shaped side chain is higher in steric hindrance, can provide better dispersing capacity in a polycarboxylate superplasticizer, and achieves a higher water reducing effect.
一种聚羧酸混凝土高性能外加剂合成用的含有Y型侧链的聚醚大单体及其制备方法，所述的含有Y型侧链的聚醚大单体的分子结构式如下：其中，R1为H或‑CH3；R2为‑CH2；R3为‑CH2CH2、‑CH2CH2CH2、‑CHCH3CH2或‑CH2C(CH3)2；m，n＝5～50。本发明还提供了所述的含有Y型侧链的聚醚大单体的制备方法。本发明的含有Y型侧链的聚醚大单体空间位阻更高，在聚羧酸减水剂中能提供更好的分散能力，达到更高的减水效果。
Polyether macromonomer containing Y-shaped side chain for synthesizing polycarboxylic acid concrete high-performance admixture and preparation method of polyether macromonomer
The invention relates to a polyether macromonomer containing a Y-shaped side chain for synthesizing a polycarboxylic acid concrete high-performance admixture and a preparation method of the polyether macromonomer, and the molecular structural formula of the polyether macromonomer containing the Y-shaped side chain is shown in the specification, wherein R1 is H or -CH3, R2 is -CH2, R3 is -CH2CH2, -CH2CH2CH2, -CHCH3CH2 or -CH2C(CH3)2, and m and n are equal to 5-50. The invention also provides a preparation method of the polyether macromonomer containing the Y-shaped side chain. The polyether macromonomer containing the Y-shaped side chain is higher in steric hindrance, can provide better dispersing capacity in a polycarboxylate superplasticizer, and achieves a higher water reducing effect.
一种聚羧酸混凝土高性能外加剂合成用的含有Y型侧链的聚醚大单体及其制备方法，所述的含有Y型侧链的聚醚大单体的分子结构式如下：其中，R1为H或‑CH3；R2为‑CH2；R3为‑CH2CH2、‑CH2CH2CH2、‑CHCH3CH2或‑CH2C(CH3)2；m，n＝5～50。本发明还提供了所述的含有Y型侧链的聚醚大单体的制备方法。本发明的含有Y型侧链的聚醚大单体空间位阻更高，在聚羧酸减水剂中能提供更好的分散能力，达到更高的减水效果。
Polyether macromonomer containing Y-shaped side chain for synthesizing polycarboxylic acid concrete high-performance admixture and preparation method of polyether macromonomer
聚羧酸混凝土高性能外加剂合成用的含有Y型侧链的聚醚大单体及其制备方法
JIA ERPENG (author) / HUANG YUMEI (author) / WANG YUQIAN (author) / LIU SONGGUANG (author) / LI QIANQIAN (author) / LIU ZHAOYANG (author) / WANG JINCHUN (author) / LIU CUIFEN (author)
2021-04-06
Patent
Electronic Resource
Chinese
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