摘要
用明胶作为皮胶原的模型化合物分别与聚甲基丙烯酸盐（ＰＭＡＡｃ）和聚丙烯酸钠盐（ＰＡＡｃ）反应，发现ＰＭＡＡｃ与明胶体系在同等条件下生成杂对称体沉淀量要大得多，因此本文选择该体系研究了其反应对ｐＨ的依赖性，ＰＭＡＡｃ含量、温度和小分子有机酸盐（乙酸钠）对相互作用的影响，结果表明，混合体系在ｐＨ≈３～２．５时形成较多沉淀；混合体系中ＰＭＡＡｃ与明胶间的作用主要是侧基－侧基类型的库仑相互作用。在分析实验结果的基础上，对ＰＭＡＡｃ与皮胶原相互作用的在观机理进行了推测。
In this paper,the reaction of gelatin,as a model compound of collagen,with sodium polymethyl acrylic acid(PMAAc) and sodium polyacrylic acid(PAAc) respectively were studied.It is suggested that the precipitate of PMAAc-Gelatin complex is more than PAAc-Gelatin complex..The dependence of the action on PH,and the effect of the content of PMAAc,temperature and sodium acetate to the interaction was investigated.The results shows that the interaction between PMAAc and gelatin is mainly pendent-pendent type coulombic forces.When PH≈2.5～3 of the system,the precipitate is more than other condition.The micromechanism of PMAAc-Collagen interaction was conjectured.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1995年第3期84-89,共6页
Polymer Materials Science & Engineering
基金
国家自然科学基金
