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论文类型：期刊论文

发表时间：2014-06-06

发表刊物：POLYMER

收录刊物：SCIE、EI、Scopus

卷号：55

期号：12

页面范围：2809-2816

ISSN号：0032-3861

关键字：Ring-opening metathesis polymerisation (ROMP); Mechanical properties; Thermal properties

摘要：A series of 1,4-dicyclopentadienylmethyl benzene (DMB) enhanced polydicyclopentadiene (DMB/polyDCPD blends) and 2,2'-dicyclopentadienyl ether (DCPE) toughened polyDCPD (DCPE/polyDCPD blends) were prepared via the ring-opening metathesis polymerisation (ROMP). The curing behaviour, thermal and mechanical properties were investigated. Differential scanning calorimetry (DSC) investigations of the DMB/polyDCPD blends showed the samples exhibited similar singular exothermic peak, and the exothermic peak of blends shifted to a higher temperature direction compared with the unfilled polyDCPD. However, the exothermic peak of the DCPE/polyDCPD blends presented two exothermic peaks. Dynamic mechanical analysis (DMA) measurements exhibited that the glassy modulus was enhanced as the DMB content increased. Thermal performance of DMB/polyDCPD has been enhanced with an increasing amount of DMB which was investigated by thermo gravimetric analysis (TGA) measurements. Whereas, the thermal stabilities of the DCPE/polyDCPD blends have been weakened with an increasing amount of DCPE. Moreover, the toughness of the DCPE/polyDCPD blends displayed a maximum performance at 60 wt% loading of DCPE. (C) 2014 Elsevier Ltd. All rights reserved.