聚甲基丙烯酸氨基乙酯的合成及染色性能

Synthesis and dying property of poly(aminoethyl methacrylate)

以白油为分散介质,偶氮二异丁腈为引发剂,甲基丙烯酸氨基乙酯为单体,采用反相悬浮聚合法合成聚甲基丙烯酸氨基乙酯(PTAM),研究了引发剂用量、反应温度、反应时间、单体浓度对PTAM特性粘数的影响。将PTAM与聚丙烯腈(PAN)共混纺丝制得共混纤维,用酸性染料染色,考察其上染率。结果表明:合成PTAM的最佳工艺条件为引发剂质量分数0.05%,单体质量分数60%,反应温度65℃,反应时间2h,所得PTAM的特性粘数为690mL/g。染色实验结果表明,PTAM质量分数为7%时,PAN共混纤维的上染率达88%。

Poly（aminoethyl methacrylate） （PTAM） was prepared via inverse suspension polymerization with white oil as disperse medium, azobisisobutyronitrile （AIBN） as an initiator and aminoethyle methacrylate （TAM） as monomer. The effects of initiator amount, reaction temperature and time and monomer concentration on the intrinsic viscosity of PTAM were studied. PTAM was blended with polyacrylonitrile （PAN） and spun into blend fiber which was dyed with acid dyestuff. The dyeing property was evaluated. The results showed that the obtained PTAM had the intrinsic viscosity of 690 mL/g when the process conditions were optimized as followed： 0.05 % initiator and 60% monomer by mass fraction, reaction temperature 65℃, reaction time 2 h. The dyeing experimental results showed that the dye up-take of the blend fiber approached to 88% when. the content of PTAM was 7% by mass fraction.