本文關(guān)鍵詞： 聚氯乙烯 鄰苯二甲酸二烯丙酯 微波輻照 接枝改性 流變性能　出處：《高分子材料科學(xué)與工程》2016年08期 　論文類型：期刊論文

【摘要】：采用微波輻照法制備了以聚氯乙烯(PVC)為骨架,鄰苯二甲酸二烯丙酯(DAP)為支鏈的接枝聚合物PVC-g-DAP。通過(guò)紅外光譜、差示掃描量熱分析對(duì)聚合物的結(jié)構(gòu)進(jìn)行了表征,同時(shí)對(duì)聚合物的流變性能、耐熱性和力學(xué)性能進(jìn)行了測(cè)試分析。結(jié)果表明,DAP在微波輻照下成功接枝到PVC大分子鏈上,PVC-g-DAP聚合物只有1個(gè)Tg,且略高于PVC。PVC-g-DAP聚合物的流變性能較PVC有大幅度改善,同時(shí)力學(xué)性能、耐熱性得到提升。
[Abstract]:The graft polymer PVC-g-DAPs with polyvinyl chloride (PVC) as skeleton and diallyl phthalate (DAPs) as branching chain was prepared by microwave irradiation. The structure of the polymer was characterized by differential scanning calorimetry (DSC), and the rheological properties, heat resistance and mechanical properties of the polymer were tested and analyzed. DAP was successfully grafted onto the macromolecular chain of PVC under microwave irradiation, and the PVC-g-DAP polymer was only 1 TG. The rheological property of the polymer is slightly higher than that of the PVC.PVC-g-DAP polymer, and the mechanical properties and heat resistance of the polymer are greatly improved than that of the PVC polymer.
【作者單位】： 四川大學(xué)高分子研究所高分子材料工程國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：橫向項(xiàng)目(JG2014050)
【分類號(hào)】：TQ325.3
【正文快照】： 常規(guī)自由基聚合所得的聚氯乙烯(PVC)分子呈線型無(wú)規(guī)纏繞狀態(tài),分子鏈上含有大量強(qiáng)極性的C-Cl結(jié)構(gòu),分子間作用力大,導(dǎo)致PVC熔體黏度高,流動(dòng)性差,加工性能不理想[1,2]。因此,提高PVC樹脂的熔體流動(dòng)性,改善其加工性能一直是PVC工業(yè)的研究熱點(diǎn)之一。近年來(lái),研究人員提出了多種物理，

本文編號(hào)：1458144