Page 31 - 《橡塑技术与装备》2019年14期（7月下半月塑料版）

理论与研究 张小红·丙烯酰胺 / 丙烯酸 / 单体 B 制备梳形聚合物的研究

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Study on comb polymer prepared by acrylamide/acrylic acid/monomer B

Zhang Xiaohong

(Shaanxi Jintai Chlor-Alkali Chemical Co., Ltd., Yulin 718100, Shaanxi, China)
Abstract: Comb polymer has many excellent properties because of its unique molecular structure, which
makes it possible to solve the problems of temperature resistance and salt resistance of polymer, so it has
great research value. The copolymerization of acrylamide, acrylic acid and monomer B aqueous solution is
carried out by inverse ammonium microemulsion polymerization in the presence of ammonium persulfate
and sodium bisulfite redox system to obtain a comb polymer with a certain temperature and salt resistance.
The effect of monomer B content on the intrinsic viscosity of polymer is investigated. Through experiments,
the appropriate technological parameters for obtaining the polymer are determined, and the structure
analysis and performance evaluation of the polymer are carried out. The experimental results show that the
appropriate technological parameters of comb polymer are as follows: the total monomer concentration
is 40%, the initiator dosage is 0.15%, the reaction temperature is 40 ℃ , the monomer B content is 17% and
the pH value is 7-8; From the results of infrared spectroscopy, it can be seen that the copolymer developed
in the laboratory is a comb polymer structure; The copolymer has a certain temperature resistance and
salt resistance, and shear thickening properties in both water and brine. The water solubility and stability of
the prepared microemulsion system are good. The intrinsic viscosity of the copolymer is 5.96dl/g, and the
molecular weight is 2.36 million.
Key words: comb polymer; inverse microemulsion polymerization; redox initiator; water-soluble copolymer;
solution property; structural characterization
（R-03)

我国将立法鼓励和引导减少使用一次性塑料制品
China will legislate to encourage and guide the reduction of using disposable plastic goods

[ 鼓励和引导减少使用一次性塑料制品 ] 固体废物污染环境防治法修订草案提出，商品零售场所开办单位、
电子商务平台企业、快递外卖企业未按照国家有关规定公开塑料袋等一次性塑料制品的使用和回收情况的，由县
级以上地方人民政府商务、邮政主管部门按照各自职责，处 1 万元以上 10 万元以下的罚款。
摘编自“央广网”
（R-03)

年
2019 第 45 卷 ·13·