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广西大学化学化工学院,广西石化资源加工及过程强化技术重点实验室,南宁 530004
李光华(1965—),男,吉林和龙,博士后,广西大学教授;主要从事活性自由基聚合(ATRP,SFRP, RAFT),嵌 段共聚物的合成、表征及固态、胶束特性的研究工作。E-mail: lighuas@gxu.edu.cn.
纸质出版日期:2014-07,
收稿日期:2013-06-18,
修回日期:2014-02-28,
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李光华, 杨忠莹, 王广东, 朱园勤, 聂良瑞, 汪春英. RAFT聚合法合成PDMAEMA-b-PAAAB嵌段共聚物的研究[J]. 高分子通报, 2014,27(7):43-50.
Guang-hua LI, Zhong-ying YANG, Guang-dong WANG, Yuan-qin ZHU, Liang-rui NIE, Chun-ying WANG. Synthesis of PDMAEMA-b-PAAAB Copolymers by RAFT Polymerization[J]. Polymer Bulletin, 2014,27(7):43-50.
李光华, 杨忠莹, 王广东, 朱园勤, 聂良瑞, 汪春英. RAFT聚合法合成PDMAEMA-b-PAAAB嵌段共聚物的研究[J]. 高分子通报, 2014,27(7):43-50. DOI:
Guang-hua LI, Zhong-ying YANG, Guang-dong WANG, Yuan-qin ZHU, Liang-rui NIE, Chun-ying WANG. Synthesis of PDMAEMA-b-PAAAB Copolymers by RAFT Polymerization[J]. Polymer Bulletin, 2014,27(7):43-50. DOI:
以甲基丙烯酸二甲氨基乙酯(DMAEMA)为单体、二硫代苯甲酸异丙苯酯(CDB)为链转移剂、偶氮二异丁腈(AIBN)为引发剂,利用RAFT聚合法合成了聚甲基丙烯酸二甲氨基乙酯(PDMAEMA)。以所得PDMAEMA为大分子链转移剂,丙烯酰胺基偶氮苯(AAAB)为单体,AIBN为引发剂,采用RAFT聚合法合成r PDMAEMA-
b
-PAAAB共聚物,并考察了 AAAB的RAFT聚合反应动力学,利用FT-IR、
1
H-NMR、GPC和TG对聚合物的结构和热性能进行了表征。结果表明,PDMAEMA的分子量随聚合反应时间的增加而增加,且分子量分布较窄;PDMAEMA-
-PAAAB嵌段共聚物的分子量随着AAAB单体转化率的升高而线性增加,且分子量分布较窄(PD
<
1. 3),聚合反应动力学曲线呈良好的线性关系,且具有较好的热稳定性。
Poly[2-(
N
-dimethylamino)ethyl methacrylate] (PDMAEMA) was synthesized by RAFT polymerization of 2-(
-dimethylamino)ethyl methacrylate (DMAEMA)
using cumyl dithiobenzoate (CDB) as a chain transfer agent and 2
2'-azobisisobutyronitrile (AIBN) as initiator. The resulting PDMAEMA as a macromolecular chain transfer agent and AIBN as a initiator
poly[2-(
-dimethylamino) ethylmethacrylate]-
-poly(acrylamido-azobenzene)](PDMAEMA-
- PAAAB) was prepared by RAFT polymerization of acrylamido-azobenzene (AAAB)
and the Kinetics of the polymerization of AAAB was investigated. The resulting PDMAEMA and PDMAEMA-
-PAAAB were characterized by FT-IR
H- NMR
GPC and TG. The results showed that the molecular weight of PDMAEMA increases with polymerization time
and the molecular weight distribution was narrower; the molecular weight of PDMAEMA-
-PAAAB increases linearly with the increase of the conversion of AAAB
the molecular weight distribution was less than 1.3
and the kinetic curve of the polymerization of AAAB exhibits a good linear relationship
and has good thermal stability.
甲基丙烯酸二甲氨基乙酯丙烯酰胺基偶氮苯RAFT聚合嵌段共聚物
2-(NN-dimethylamino)ethyl methacrylateAcrylamido-azobenzeneRAFT polymerizationBlock copolymer
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