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双环戊二烯/蒎烯共聚合研究

Research on copolymerization of DCPD/pinene

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【作者】 张朝明张亚杰金文杰余志强张玉清

【Author】 Zhang Chaoming;Zhang Yajie;Jin Wenjie;Yu Zhiqiang;Zhang Yuqing;Henan University of Science and Technology;

【机构】 河南科技大学高分子科学与纳米技术重点实验室

【摘要】 研究了以三配钨酚(WCl6)做主催化剂,一氯二乙基铝(Et2AlCl)做助催化剂,蒎烯(Pinene)为共聚单体与双环戊二烯(DCPD)进行共聚,采用反应注射成型工艺制备出了聚双环戊二烯/蒎烯(PDCPD/Pinene)材料。并采用红外光谱、扫描电镜和热重等表征手段对复合材料的结构及性能进行了表征。结果表明:所制备出聚双环戊二烯/蒎烯复合材料,共聚物经溶剂抽提后质量不变,且红外光谱分析显示存在DCPD加成后的特征吸收峰;热失重分析显示共聚合物仅有一个分解温度。同时考察了蒎烯用量对聚双环戊二烯/蒎烯复合材料力学性能及转化率的影响。材料拉伸和冲击性能在α-蒎烯和β-蒎烯含量均为0.5%时达到最佳,与聚双环戊二烯材料相比,拉伸性能分别提高了52.78%和53.89%;其冲击性能也分别提高了23.98%和18.86%;以α-蒎烯和β-蒎烯混合物(其中α-蒎烯占70%,β-蒎烯占30%)与DCPD共聚,其共聚的拉伸强度和冲击强度分别提高了43.89%和15.4%。

【Abstract】 Focuses on the preparation of DCPD/pinene with copolymerizing method and using reaction injection molding,in which WCl6 used as the main catalyst,Et2 AlCl as the sub-catalyst and pinene as the monomer respectively.And also,the structure and features of composite materials were characterized by using FT-IR,scanning electron microscopy and TG.The experimental results showed:the quality of prepared DCPD/pinene remained unchanged after solvent extraction process;FT-IR spectrum showe the presence of DCPD’s characteristic absorption peak;thermogravimetric analysis showed the prepared copolymer had only one decomposition temperature.What’s more,the influence of pinene dosage on the mechanical properties and the conversion ratio of prepared DCPD/Pinene were analyzed.The tensile property of DCPD/pinene increased by 52.78%(α-pinene)or 53.89%(β-pinene)and the impact property of DCPD/pinene increased by 23.98%(α-pinene)and 18.86%(β-pinene).When the dosage ofα-pinene orβ-pinene was 0.5%,which was the best,compared with common prepared DCPD/pinene.When DCPD was copolymerized with the mixture ofα-pinene andβ-pinene(70% α-pinene,30%β-pinene),the tensile and impact properties of DCPD/pinene increased by 43.89% and 15.4% respectively.

【关键词】 聚双环戊二烯蒎烯共聚合
【Key words】 PDCPDpinenepolymerization
【基金】 河南省杰出人才创新基金(074200510019)
  • 【文献出处】 化工新型材料 ,New Chemical Materials , 编辑部邮箱 ,2017年12期
  • 【分类号】TQ316.3
  • 【被引频次】1
  • 【下载频次】195
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