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Renewable Tung oil used as conjugated diene were modified via a Diels-Alder reaction with maleic anhydride. And the maleic Tung oil was reacted with pentaerythritol triacrylate (PETA). Then glycidyl methacrylate (GMA) was used to counteract the residual acid. The products, a photocurable resin were prepared and its structure was identified by FT-IR, 1HNMR, GPC.
On the basis of learning from the researches of scholars in the past, this text constructs the new index set and appraises models to evaluate the level of information in higher education; The paper choose 3 university and carry on empirical analysis according to the mathematical model, finally it draw a conclusion that the model have strong practicality.
With the rapid development of Internet, the solutions for higher education informatization evaluation has attracted the attentions of colleges and scholars. Higher education informatization evaluation belongs to multi-criteria decision problems, in order to assess the informatization level of different colleges and select an appropriate college, the appropriate evaluation methods are needed. In this...
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