INTERMOLECULAR AND INTRAMOLECULAR INTERACTIONS OF POLYMER GUAR GUM IN SOLUTIONS

Yun-fei Yan; Hai-yang Yang; Wen-yong Liu; Ping-ping Zhu; Ping-sheng He

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INTERMOLECULAR AND INTRAMOLECULAR INTERACTIONS OF POLYMER GUAR GUM IN SOLUTIONS

Note | Updated：2021-06-21

- INTERMOLECULAR AND INTRAMOLECULAR INTERACTIONS OF POLYMER GUAR GUM IN SOLUTIONS
- Vol. 23, Issue 5, Pages: 557-559(2005)
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- Published：20 September 2005
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Yun-fei Yan, Hai-yang Yang, Wen-yong Liu, et al. INTERMOLECULAR AND INTRAMOLECULAR INTERACTIONS OF POLYMER GUAR GUM IN SOLUTIONS[J]. 2005, 23(5): 557-559.
DOI：

Yun-fei Yan, Hai-yang Yang, Wen-yong Liu, et al. INTERMOLECULAR AND INTRAMOLECULAR INTERACTIONS OF POLYMER GUAR GUM IN SOLUTIONS[J]. 2005, 23(5): 557-559. DOI：

摘要

The tetrahedral borate ion can crosslink with polymer guar gum in aqueous solutions. If the concentration of guar gum is less than 0.045 g/dL

the intramolecular interaction between guar gum and borate ion increases due to the formation of crosslinks. As a result

the polymer chains of guar gum in solution shrink in size and the reduced viscosity of polymer solution decreases accordingly. On the other hand

if the concentration of guar gum is greater than 0.045 g/dL

the intermolecular interaction becomes apparent due to the same reason. The polymer chains

therefore

associate together and the reduced viscosity of polymer solution increases considerably. According to this technique

the critical concentration c*

presented by de-Gennes[1]

is determined successfully.

Abstract

The tetrahedral borate ion can crosslink with polymer guar gum in aqueous solutions. If the concentration of guar gum is less than 0.045 g/dL

the intramolecular interaction between guar gum and borate ion increases due to the formation of crosslinks. As a result

the polymer chains of guar gum in solution shrink in size and the reduced viscosity of polymer solution decreases accordingly. On the other hand

if the concentration of guar gum is greater than 0.045 g/dL

the intermolecular interaction becomes apparent due to the same reason. The polymer chains

therefore

associate together and the reduced viscosity of polymer solution increases considerably. According to this technique

the critical concentration c*

presented by de-Gennes[1]

is determined successfully.

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