摘要
以过氧化苯甲酰(BPO)为引发剂,甲醇为溶剂合成了聚醋酸乙烯酯(PVAc),研究了引发剂和甲醇用量、反应时间对转化率和固含量的影响,并对聚合物进行了粘接性能测试;同时以PVAc为高分子配体,合成了PVAc-铕(PVAc-Eu)配合物,并通过红外光谱对配体和配合物的结构进行了表征,测定了配合物的发光和热性能。结果表明,醋酸乙烯酯聚合的较佳条件是:甲醇体积为单体体积的11. 9%,引发剂用量为0. 19 g(单体质量的0. 5%),反应时间为3 h;用508 nm作激发波长,配合物荧光光谱在612 nm处出现铕的特征吸收峰;热重(TG)测试显示,PVAc和PVAc-铕起始热分解温度分别是300和86℃。
Polyvinyl acetate （PVAc） was synthesized with benzoyl peroxide （BPO） as initiator and methanol as solvent. The effects of the amounts of initiator and methanol and the reaction time on conversion and solid content were studied. The adhesive performance of polymers was also measured. In addition, the europium complex of PVAc （ PVAc - Eu） was synthesized using PVAc as polymer ligand, and the structures of ligand and complex were characterized by IR spectroscopy. The luminescent and thermal properties of complex were also studied. The results show that, the optimized conditions for polymerization are as follows：methanol is in an amount corresponding to 11.9% of the volume of monomer,the dosage of initiator is 0.19 g,0.5% of mass initiator ratio to monomer and the reaction time is 3 hours, Using 508 nm as excitation wavelength, the fluorescence spectrum of the complex has a characteristic absorption peak of europium at 612 nm. Themlogravimetric （TG） experiments show that the initial themml decomposition temperature of PVAc and PVAc -Eu are 300℃ and 86℃, respectively.
作者
李善吉
谢鹏波
袁宁宁
欧阳英
LI Shan-ji;XIE Peng-bo;YUAN Ning-ning;OUYANG Ying(Department of Petrochemical Engineering,Guangzhou Institute of Technology-,Guangzhou,Guangdong 510725,China)
出处
《日用化学工业》
CAS
CSCD
北大核心
2018年第11期632-636,共5页
China Surfactant Detergent & Cosmetics
基金
广州市教育系统创新学术团队项目(1201610020)
关键词
聚醋酸乙烯酯
铕配合物
发光性能
热性能
polyvinyl acetate
europium complex
luminescent property
thermal performance
