摘要
研究了用MMA对SBS胶接枝改性方法 ,并用FTIR红外光谱和TG -DTA差热分析仪对产物SBS -g -MMA进行结构表征和性能测定。结果表明 :MMA :SBS为 0 .75～ 1 .0 (质量比 )、BPO的用量为 2 %～ 3% (反应物 )、反应温度为 80～ 85℃、反应时间为 4～ 5h ,可获得接枝效率达 1 2 %～ 1 4%、粘度为 1 0 0 0～ 1 5 0 0mPa·s的理想接枝胶 ,SBS -g -MMA胶的FTIR红外光谱上含有 -C =C -双键吸收峰 ,表明SBS -g -MMA接枝胶能进一步固化和交联 ,同时也说明该胶易发生凝胶现象 ;TG -DTA差热分析谱图显示SBS -g -MMA胶比SBS胶的热失重温度要高 。
This paper mainly investigated the graft copolymerization of SBS with MMA in solution. The structure of the product was analysed FTIR spectra and TG-DTA spectra. The result showed that the feasible SBS-g-MMA adhesive with graft efficiency 12-14 percent and viscosity 1000-1500 MPa·S was observed when it was used the mass ratio of MMA to SBS as 0.75-1.0(mass ratio),the BPO dosage as 2-3 percent(reaction matter), the reaction temperature as 80-85 ℃ and the reaction time as 4-5 hours. The FTIR of SBS-g-MMA spectra had -C=C- double bond absorption apex It was showed that SBS-g-MMA could be further crosslinked and the graft copolymerization was easy to gel. The DTA temperature of SBS-g-MMA of TG-DTA spectra was higher than that of SBS. It was showed the graft modification of SBS using MMA could improve thermal stability of adhesive.
出处
《盐城工学院学报（自然科学版）》
CAS
2003年第1期22-25,共4页
Journal of Yancheng Institute of Technology:Natural Science Edition
关键词
MMA
SBS
接枝
表征
MMA
SBS
graft
structure analysis
