CAJ | 학술논문

用双螺杆挤出机熔融挤出法制备马来酸酐接枝聚丙烯(PP-g-MAH)。研究了活性剂二硫化四甲基秋兰姆（TMTD）对PP-g-MAH的影响，通过傅立叶变换红外光谱(FTIR)、差示扫描量热分析、熔体流动速率、酸碱滴定法等表征手段检测接枝物性能。FTIR结果显示，TMTD在接枝反应中起到活性剂的作用，没有接枝到PP分子链上。TMTD的加入提高了MAH的接枝率，在TMTD用量超过引发剂用量时能抑制PP分子链的β断裂。
용쌍라간제출궤용융제출법제비마래산항접지취병희(PP-g-MAH)。연구료활성제이류화사갑기추란모（TMTD）대PP-g-MAH적영향，통과부립협변환홍외광보(FTIR)、차시소묘량열분석、용체류동속솔、산감적정법등표정수단검측접지물성능。FTIR결과현시，TMTD재접지반응중기도활성제적작용，몰유접지도PP분자련상。TMTD적가입제고료MAH적접지솔，재TMTD용량초과인발제용량시능억제PP분자련적β단렬。
Maleic anhydride graft polypropylene(PP-g-MAH) was prepared by melt-extrusion method in twin-screw extruder. The effect of Tetramethylthiuram Disulifde(TMTD) on PP-g-MAH was studied. The performances of the graft products were tested by FIIR,DSC,MFR and acid-base titration. The FTIR spectra test results show that TMTD play a role as the active agents in the grafting reaction,no grafted onto the molecular chain of polypropylene. TMTD improves the grafting ratio of MAH and can inhibit theβ-scission of PP when the content of TMTD is more than that of the initiator.