Graft co-polymerization of mechanically activated sugarcane  bagasse and acrylic acid(sodium acrylate)

HUANG Zuqiang; LIANG Xingtang; GAO Li; HU Huayu; TONG Zhangfa

您当前的位置：

首页 >

文章列表页 >

Graft co-polymerization of mechanically activated sugarcane  bagasse and acrylic acid(sodium acrylate)

更新时间：2025-12-10

- Graft co-polymerization of mechanically activated sugarcane  bagasse and acrylic acid(sodium acrylate)
- CIESC Journal Issue 6, Pages: 1573-1580(2009)
- 作者机构：
  
  广西大学化学化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 June 2009，
  
  Published：05 June 2009
- 稿件说明：
移动端阅览
HUANG Zuqiang, LIANG Xingtang, GAO Li, et al. Graft co-polymerization of mechanically activated sugarcane  bagasse and acrylic acid(sodium acrylate)[J]. CIESC Journal, 2009, (6): 1573-1580.
DOI：

HUANG Zuqiang, LIANG Xingtang, GAO Li, et al. Graft co-polymerization of mechanically activated sugarcane  bagasse and acrylic acid(sodium acrylate)[J]. CIESC Journal, 2009, (6): 1573-1580. DOI：

摘要

采用搅拌球磨对甘蔗渣进行机械活化，以不同活化时间的甘蔗渣为原料，过硫酸铵和亚硫酸钠为引发剂，在水溶液中与部分中和的丙烯酸进行接枝共聚反应。以接枝率和接枝效率为评价指标，考察了活化时间、丙烯酸与甘蔗渣的用量比、反应时间和反应温度等因素对接枝反应的影响。并采用SEM、FT-IR对甘蔗渣和产物进行表征。结果表明：机械活化明显强化了甘蔗渣与丙烯酸的接枝共聚反应，接枝率和接枝效率随着活化时间的延长而增大，主要是由于机械活化破坏了甘蔗渣中木质素对纤维素的包裹作用，降低纤维素的结晶度，提高了其反应活性。以活化1.5 h的甘蔗渣为原料进行接枝共聚反应，在反应时间为3 h、丙烯酸（体积，ml）与甘蔗渣（质量，g）的用量比为6、反应温度为60℃的条件下，制得接枝率和接枝效率分别为165.29%和82.70%的接枝共聚产物。

Abstract

Sugarcane bagasse (SCB) was mechanically activated by a stirring-type ball mill.Graft copolymer (SCB-g-PAA) of SCB with different mechanical activation times and partially neutralized acrylic acid (AA) was synthesized by free radical polymerization using ammonium persulfate/sodium sulfite redox pair in aqueous solution.The effects of activation times

ratio of SCB to AA

reaction time and reaction temperature on the grafting ratio and grafting efficiency were investigated.The granule morphology

functional groups

crystal structure of the SCB with different activation times and SCB-g-PAA were characterized by using scanning electron microscopy (SEM)

Fourier transform infrared spectroscopy (FT-IR). It was found that the graft co-polymerization was strengthened obviously by mechanical activation

and grafting ratio and grafting efficiency increased with activation time.This could be attributed to that mechanical activation broke the sealing of cellulose by lignin

decreased the degree of crystallinity of cellulose

made it more accessible to AA

and improved the reactivity of cellulose.Grafting ratio and Grafting efficiency were obtained in the values of 165.29% and 82.70% by graft co-polymerization of bagasse activated for 1.5 h and acrylic acid in the conditions: reaction time 3 h

ratio of acrylic acid(volume) to sugarcane bagasse(mass) 6 and reaction temperature 60℃.

关键词

Keywords

references

Views

762

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Surface modification of sugar cane bagasse with aluminate ester strengthened by mechanical activation

KLPAAM复合高吸水树脂吸附

Simulation of preparation of acrylic acid from lactic acid dehydration based on BP neural network

Synthesis of superabsorbent resin of konjac glucomannan grafting acrylic acid/acrylamide

EFFECT OF OLEATES AS EMULSIFIERS ON GRAFT COPOLYMERIZATION OF AM-AA ON STARCH IN INVERSE EMULSION

Related Author

JIANG Daohai

WANG Nan

吴义强

韩心强

张绘营

谢建军

何新建

SUN Peng

Related Institution

中南林业科技大学材料科学与工程学院

南京工业大学制药与生命科学学院

江苏省工业生物技术创新中心

有机功能分子合成与应用教育部重点实验室

大连理工大学精细化工国家重点实验室

⁰