WATER-SOLUBLE AND AMPHIPHILIC POLYMERS:POLY (ACRYLAMIDE-co-SODIUM ACRYLATE)-g-POLY(β-ALANINE)GRAFT COPOLYMERS

SHANG Zhen-ping; FANG Tian-ru

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WATER-SOLUBLE AND AMPHIPHILIC POLYMERS:POLY (ACRYLAMIDE-co-SODIUM ACRYLATE)-g-POLY(β-ALANINE)GRAFT COPOLYMERS

Research Article | 更新时间：2021-03-19

- WATER-SOLUBLE AND AMPHIPHILIC POLYMERS:POLY (ACRYLAMIDE-co-SODIUM ACRYLATE)-g-POLY(β-ALANINE)GRAFT COPOLYMERS
- Acta Polymerica Sinica Issue 1, Pages: 76-84(1994)
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- Published：20 February 1994，
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SHANG Zhen-ping, FANG Tian-ru. WATER-SOLUBLE AND AMPHIPHILIC POLYMERS:POLY (ACRYLAMIDE-co-SODIUM ACRYLATE)-g-POLY(β-ALANINE)GRAFT COPOLYMERS. [J]. Acta Polymerica Sinica (1):76-84(1994)
DOI：

SHANG Zhen-ping, FANG Tian-ru. WATER-SOLUBLE AND AMPHIPHILIC POLYMERS:POLY (ACRYLAMIDE-co-SODIUM ACRYLATE)-g-POLY(β-ALANINE)GRAFT COPOLYMERS. [J]. Acta Polymerica Sinica (1):76-84(1994) DOI：

摘要

合成了端丙烯酰胺基聚（β－胺基两酸）大分子单体，用端基滴定法和１Ｈ—ＮＭＲ法测定了大分子单体的分子量，用１３Ｃ—ＮＭＲ和氢氧化钠水解法测定了支化度．在水溶液中用硫酸亚铁／异丙苯过氧化氢氧化还原引发体系引发丙烯酸胺、丙烯酸钠与聚（β－胺基丙酸）大分子单体的共聚反应，合成了聚（丙烯酰胺－ｃｏ－丙烯酸钠）－ｇ－聚（β－胺基丙酸）接枝共聚物．用１Ｈ—ＮＭＲ和滴定法测定了接枝共聚物的组成．溶液性质的数据表明，与部分水解聚丙烯酰胶相比，聚（β－胺基丙酸）含量较高的接枝共聚物具有较好的耐盐性和优异的贮存稳定性．

Abstract

A poly (β- alanine ) macromer with acrylamido - chain- end was synthesize.Its molecular weight was obtained by end-group titration and IH-NMRmeasurement

and its branching degree was measured by 13C-NMR and NaOHhydrolysis method. Copolymerization of acrylamide and sodium acrylate with thepoly (β- alanine) macromer in aqueous solutions by using a ferrous sulfate/cumenehydroperoxide redox initiation system resulted in formation of poly(acrylamide - co - sodium acrylatc ) - g - poly (β- alanine) graft copolymers

the composition of whichwas determined by 1H-NMR and titration. The solution properties show that the graft copolymers with higher poly (β-alanine) content exhibit better viscosity retentionin brine and high storage stability

compared with partially hydrolyzed polyacrylamide (HPAM).

关键词

大分子单体接枝共聚物端丙烯酸胺基聚（β－胺基丙酸）改性聚丙烯酸胺溶液性质盐水粘度保留值

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