One-step synthesis of glucose-branched galactomannan

Gong, Peixin; Peng, Shuhua; He, Jiyu; Deng, Mingyu; Jiang, Bo; Wang, Ke

doi:10.1016/j.carres.2011.06.012

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…Furthermore, the peak at 2.45 ppm (H-a) and 2.46 ppm (H-b) correspond to -NH(CO)-CH 2 - and -CH 2 -COOH of the substituted succinyl group (-NH(CO)-CH 2 -CH 2 -COOH), respectively [35]. The degree of substitution (DS) is calculated using Equation (1):DS = normalA′×14normalA″×16 × 100% where the A′ represents the integral value of protons corresponding to -CH 2 -CH 2 - (H-a and H-b) of the substituted succinyl group (-NH(CO)-CH 2 -CH 2 -COOH), and the A″ represents the integral value of protons corresponding to H-2, H-2′, H-3, H-4, H-5 and H-6 [39]. The calculated value of DS is 71%.…”

Section: Resultsmentioning

confidence: 99%

A Novel pH- and Salt-Responsive N-Succinyl-Chitosan Hydrogel via a One-Step Hydrothermal Process

Wang

et al. 2019

Molecules

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In this study, we synthesized a series of pH-sensitive and salt-sensitive N-succinyl-chitosan hydrogels with N-succinyl-chitosan (NSCS) and the crosslinker glycidoxypropyltrimethoxysilane (GPTMS) via a one-step hydrothermal process. The structure and morphology analysis of the NSCS and glycidoxypropyltrimethoxysilane-N-succinyl chitosan hydrogel (GNCH) revealed the close relation between the swelling behavior of hydrogels and the content of crosslinker GPTMS. The high GPTMS content could weaken the swelling capacity of hydrogels and improve their mechanical properties. The hydrogels show high pH sensitivity and reversibility in the range of pH 1.0 to 9.0, and exhibit on-off switching behavior between acidic and alkaline environments. In addition, the hydrogels perform smart swelling behaviors in NaCl, CaCl2, and FeCl3 solutions. These hydrogels may have great potential in medical applications.

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