High-technology materials based on modified polysaccharides

被引：68

作者：

Singh, Ram P. ^{[1
]}

Pal, Sagar ^{[2
]}

Krishnamoorthy, S. ^{[3
]}

Adhikary, P. ^{[4
]}

Ali, Sk Akbar ^{[5
]}

机构：

[1] Univ Lucknow, Off Vice Chancellor, Lucknow 226007, Uttar Pradesh, India

[2] BIT Mesra, Dept Appl Chem, Ranchi 835215, Bihar, India

[3] BHU, Dept Chem, Varanasi, Uttar Pradesh, India

[4] Indian Inst Technol, Ctr Mat Sci, Kharagpur 721302, W Bengal, India

[5] Hindustan Gum & Chem Ltd, Bhiwani 127021, Haryana, India

来源：

PURE AND APPLIED CHEMISTRY | 2009年 / 81卷 / 03期

关键词：

polysaccharides; polyacrylamide grafting; modified polysaccharides; flocculants; drag reduction; DILUTE POLYMER-SOLUTIONS; PERFORMANCE FLOCCULATING AGENT; HYDROXYPROPYL GUAR GUM; COLLOIDAL SILICIC-ACID; GRAFT-COPOLYMERS; CATIONIC STARCH; DRAG-REDUCTION; SHEAR STABILITY; XANTHAN-GUM; MACROMOLECULAR CONFORMATIONS;

D O I：

10.1351/PAC-CON-08-08-17

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Polysaccharides are abundantly available from farm, forest, and microbial resources. They are used in myriad applications. It has been established in the authors' laboratory that their performance is enhanced considerably on purification, grafting by polyacrylamide (PAM), and subsequent hydrolysis as well as cationization. The most significant performance is enhanced in flocculation where it has been found that the modified polysaccharides outperform existing flocculants in national and international markets. Similar effects are observed in their performance in turbulent drag reduction (DR), percolation, and rheology. The present article outlines the details of materials, mechanisms, and practical applications of these novel materials.

引用

页码：525 / 547

页数：23

共 83 条

[1]

Synthesis, characterization, and flocculation characteristics of hydrolyzed and unhydrolyzed polyacrylamide grafted xanthan gum [J].