衰老对明胶凝胶流变学性质的影响。
The effect of ageing on the rheological properties of gelatin gels.
作者信息
Robinson J A, Kellaway I W, Marriott C
出版信息
J Pharm Pharmacol. 1975 Sep;27(9):653-8.
The effect of ageing at 4 degrees on the viscoelastic properties of 1-5 and 2-0% acid and alkaline processed gelatin gels has been investigated. Viscoelastic properties were not markedly affected by ageing time although evidence of a decrease in gel structure with increasing ageing time was apparent. This has been tentatively attributed to hydrolysis of amide links. 1-5% alkaline gels were shown to be more rigid than the corresponding acid gels and this has been discussed in terms of differences in molecular weight, polydispersity, charge and charge distribution.
研究了4℃老化对1-5%和2-0%酸碱处理明胶凝胶粘弹性的影响。尽管随着老化时间的增加，凝胶结构有下降的迹象，但老化时间对粘弹性性能没有显著影响。这初步归因于酰胺键的水解。结果表明，1-5%的碱性凝胶比相应的酸性凝胶更硬，这已从分子量、多分散性、电荷和电荷分布的差异方面进行了讨论。
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