改性蓖麻油制备聚氨酯-聚苯乙烯同步互穿网络

IF 1.4 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Elastomers and Plastics Pub Date : 2010-03-23 DOI:10.1177/0095244310368122

M. Valero

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引用次数: 4

摘要

以季戊四醇改性蓖麻油、聚氨酯和聚苯乙烯为原料，研究了一系列同步互穿聚合物网络。采用动态机械热分析(DMTA)研究了混相、相连续和相分离。推导了相分离程度和互穿特性随组分的变化规律。利用基于力学模型的理论方程分析了合成捷联惯导系统的模量-组成关系。这些模型大多假设均质各向同性相与基体中的夹杂物是球形的，并具有良好的粘附性。ipn遵循Budiansky模型，该模型预测了中间成分的相位反转。

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Polyurethane–Polystyrene Simultaneous Interpenetrating Networks from Modified Castor Oil

A series of simultaneous interpenetrating polymer networks (SINs) based on pentaerythritol modified castor oil polyurethane and polystyrene were studied. Miscibility, phase continuity and phase separation are studied by dynamic mechanical thermal analysis (DMTA). The patterns of extent of the phase separation and the characteristics of the interpenetration reached as a function of the components were deduced. The modulus-composition relationship has been analyzed for the synthesized SINs using theoretical equations based on mechanical models. Most of these models assume perfect adhesion between the homogeneous isotropic phases and the inclusions in the matrix are spherical. The IPNs follow the Budiansky model, which predicts a phase inversion at intermediate compositions.

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来源期刊

Journal of Elastomers and Plastics 工程技术-材料科学：综合

CiteScore

3.30

自引率

5.90%

发文量

审稿时长

6 months

期刊介绍： The Journal of Elastomers and Plastics is a high quality peer-reviewed journal which publishes original research on the development and marketing of elastomers and plastics and the area in between where the characteristics of both extremes are apparent. The journal covers: advances in chemistry, processing, properties and applications; new information on thermoplastic elastomers, reinforced elastomers, natural rubbers, blends and alloys, and fillers and additives.