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Chitosan oligosaccharide intermediate, preparation method thereof and application of chitosan oligosaccharide intermediate in preparation of phosphonate water reducing agent
The invention provides a chitosan oligosaccharide intermediate, a preparation method thereof and an application of the chitosan oligosaccharide intermediate in synthesis of a phosphate-based water reducing agent. The chitosan oligosaccharide intermediate is structurally characterized in that a main chain structure is a-C-O-bonded six-membered oxygen-containing heterocyclic ring structure, whereinthe six-membered oxygen-containing heterocyclic ring structure is provided with polyhydroxy and amido, and the amido is provided with a phosphorous acid group bridged through methylene. The phosphate-based water reducing agent takes chitosan oligosaccharide as a main chain; a phosphonic acid-based adsorption group and a polyether side chain are grafted on the chitosan oligosaccharide; the main chain structure is a six-membered ring structure connected through a C-O bond, and the ring structure has a polyhydroxy group. The phosphate-based water reducing agent has workability improvement and retarding performance.
本发明提供一种壳寡糖中间体及其制备方法和其用于合成磷酸基减水剂的应用，本发明所述的壳寡糖中间体，其结构特征为主链结构为‑C‑O‑键合的六元含氧杂环结构，六元杂环结构上具有多羟基和胺基，胺基有通过亚甲基桥接的亚磷酸基团。所述磷酸基减水剂将壳寡糖作为主链，在其上接枝膦酸基吸附基团和聚醚侧链，主链结构为通过C‑O键相连的六元环状结构，且环状结构上具有多羟基基团。所述磷酸基减水剂具有和易性改善和缓凝性能。
Chitosan oligosaccharide intermediate, preparation method thereof and application of chitosan oligosaccharide intermediate in preparation of phosphonate water reducing agent
The invention provides a chitosan oligosaccharide intermediate, a preparation method thereof and an application of the chitosan oligosaccharide intermediate in synthesis of a phosphate-based water reducing agent. The chitosan oligosaccharide intermediate is structurally characterized in that a main chain structure is a-C-O-bonded six-membered oxygen-containing heterocyclic ring structure, whereinthe six-membered oxygen-containing heterocyclic ring structure is provided with polyhydroxy and amido, and the amido is provided with a phosphorous acid group bridged through methylene. The phosphate-based water reducing agent takes chitosan oligosaccharide as a main chain; a phosphonic acid-based adsorption group and a polyether side chain are grafted on the chitosan oligosaccharide; the main chain structure is a six-membered ring structure connected through a C-O bond, and the ring structure has a polyhydroxy group. The phosphate-based water reducing agent has workability improvement and retarding performance.
本发明提供一种壳寡糖中间体及其制备方法和其用于合成磷酸基减水剂的应用，本发明所述的壳寡糖中间体，其结构特征为主链结构为‑C‑O‑键合的六元含氧杂环结构，六元杂环结构上具有多羟基和胺基，胺基有通过亚甲基桥接的亚磷酸基团。所述磷酸基减水剂将壳寡糖作为主链，在其上接枝膦酸基吸附基团和聚醚侧链，主链结构为通过C‑O键相连的六元环状结构，且环状结构上具有多羟基基团。所述磷酸基减水剂具有和易性改善和缓凝性能。
Chitosan oligosaccharide intermediate, preparation method thereof and application of chitosan oligosaccharide intermediate in preparation of phosphonate water reducing agent
一种壳寡糖中间体及其制备方法和其用于制备膦酸盐减水剂的应用
MA JIANFENG (Autor:in) / LIU JIAPING (Autor:in) / WANG TAO (Autor:in) / QI SHUAI (Autor:in) / FAN SHIMIN (Autor:in) / WANG BING (Autor:in) / HAN ZHENG (Autor:in) / WANG YANWEI (Autor:in)
07.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C08B
POLYSACCHARIDES
,
Polysaccharide
/
C04B
Kalk
,
LIME
/
C07H
Zucker
,
SUGARS
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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