Effect of two comonomers on salt tolerance of starch/sodium polyacrylate superabsorbent

GAO Yang; FENG Xinxin; XING Zhe; LI Linfan; HUANG Weibing; LI Rong; WU Guozhong

doi:10.11889/j.1000-3436.2023-0018

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Effect of two comonomers on salt tolerance of starch/sodium polyacrylate superabsorbent

RADIATION CHEMISTRY | 更新时间：2023-10-27

- Effect of two comonomers on salt tolerance of starch/sodium polyacrylate superabsorbent
- Journal of Radiation Research and Radiation Processing Vol. 41, Issue 5, Pages: 50204(2023)
- 作者机构：
  
  1.中国科学院上海应用物理研究所上海 201800
  2.中国科学院大学北京 100049
  3.上海长沪新材料有限公司上海 201800
  4.上海科技大学物质科学与技术学院上海 200031
- 作者简介：
  
  GAO Yang (male) was born in February 1998, and obtained his bachelor's degree from East China University of Science and Technology in 2019. Now he is a graduate student at Shanghai Institute of Applied Physics, Chinese Academy of Sciences, majoring in inorganic chemistry
  LI Rong, associate professor, E-mail: lirong@sinap.ac.cn
  WU Guozhong, professor, E-mail: wuguozhong@sinap.ac.cn
- 基金信息：
  
  Major Scientific and Technological Project of Shanghai Institute of Applied Physics, Chinese Academy of Science "Research on Some Frontier Applications of Radiation Technology in the Field of Ecological Environment and Health"
- DOI：10.11889/j.1000-3436.2023-0018
  CLC：
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GAO Yang, FENG Xinxin, XING Zhe, et al. Effect of two comonomers on salt tolerance of starch/sodium polyacrylate superabsorbent. [J]. Journal of Radiation Research and Radiation Processing 41(5):050204(2023)
DOI：

GAO Yang, FENG Xinxin, XING Zhe, et al. Effect of two comonomers on salt tolerance of starch/sodium polyacrylate superabsorbent. [J]. Journal of Radiation Research and Radiation Processing 41(5):050204(2023) DOI： 10.11889/j.1000-3436.2023-0018.

摘要

利用γ射线共辐照法，制备了由两种共聚单体接枝交联而成的淀粉基超级吸水材料（Super absorbent polymer，SAP）。傅里叶变换红外光谱证明了丙烯酰胺（AM）和2-丙烯酰氨基-2-甲基-1-丙烷磺酸（AMPS）分别被引入到淀粉/聚丙烯酸钠（Starch,-g-,PAA）SAP中。采用热重分析法研究了SAP的热分解行为。通过引入AM和AMPS单体，SAP的耐盐性得到显著提升，引入AMPS的SAP在生理盐水中的吸液倍率从46 g/g（未添加AMPS）提高至81 g/g（AA∶AMPS=3∶1）。

Abstract

Starch-based super absorbent polymers (SAPs) were prepared using the gamma-ray co-irradiation method, where two comonomers were grafted and cross-linked. Incorporation acrylamine (AM) and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) into the SAP was confirmed using Fourier transform infrared spectroscopy. The thermal decomposition behavior of the SAP was studied using thermogravimetric analysis. The salt tolerance was significantly improved by introducing AM and AMPS monomers into the SAP. The absorption rate of the SAP with AMPS in normal saline increased from 46 g/g (without AMPS) to 81 g/g when the ratio of AA:AMPS was 3:1.

关键词

超级吸水材料辐射接枝水溶性淀粉丙烯酸耐盐性能

Keywords

Super absorbent polymerRadiation graftingWater-soluble starchAcrylic acidSalt tolerance

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