详细信息
聚丙烯酸-聚(γ-苄基-L-谷氨酸酯)接枝共聚物的合成与表征
Synthesis and characterization of poly(acrylic acid)-poly-γ-benzyl-L-glutamate grafting copolymer
文献类型:期刊文献
中文题名:聚丙烯酸-聚(γ-苄基-L-谷氨酸酯)接枝共聚物的合成与表征
英文题名:Synthesis and characterization of poly(acrylic acid)-poly-γ-benzyl-L-glutamate grafting copolymer
作者:贲进[1];袁雪伟[1];刘峰[1];杲云[1];林嘉平[1]
机构:[1]华东理工大学材料科学与工程学院,上海200237
年份:2007
卷号:30
期号:6
起止页码:416
中文期刊名:合成橡胶工业
外文期刊名:China Synthetic Rubber Industry
收录:CSTPCD;;Scopus;北大核心:【北大核心2004】;CSCD:【CSCD_E2011_2012】;
语种:中文
中文关键词:聚丙烯酸;聚(γ-苄基-L-谷氨酸酯);接枝共聚物;两亲性;胶束
外文关键词:poly ( acrylic acid) ; poly -γ-benzyl-L-glutamate; grafting copolymer; amphipathy; mi-celle
摘要:采用溶液聚合法直接合成聚丙烯酸(PAA),通过接枝反应合成了新型两亲性PAA-聚(γ-苄基-L-谷氨酸酯)(PBLG)接枝共聚物,分析了PAA与PBLG的相对分子质量及结构,并通过1H-核磁共振(1H-NMR)、红外光谱(IR)对共聚物进行了表征。结果表明,随着引发剂偶氮二异丁腈用量的增加或聚合温度的升高,PAA的数均相对分子质量减小;随着引发剂正丁胺用量的增加,PBLG的黏均相对分子质量减小。共聚物中含有接枝到PAA链上的疏水性PBLG,同时还含有未反应的亲水性羧基;共聚物在NaCl或NaOH水溶液中形成的球形胶束具有明显的核壳结构。
Poly ( acrylic acid ) ( PAA ) -g- poly -γ- benzyl-L-glutamate) (PBLG) copolymer was synthesized by grafting reaction of PAA and PBLG. The relative molecular mass and structure of PAA and PBLG were studied. The structure of (PAA-g- PBLG) was characterized by ~H-nuclear magnetic resonance and infra-red spectroscopy. The results showed that the relative number-average molecular mass of PAA decreased with increasing amount of azobisisobutyronitrile and reaction temperature. The relative viscosity-average molecular mass of PBLG decreased with increasing amount of n-butylamine. PBLG was grafted onto PAA, meanwhile non-reactive--COOH group existed in PAA chain. Shell- core structure of PAA-g-PBLG copolymer micelle was formed in NaCl or NaOH solution.
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