Changes of structure and properties of polymer materials under the action of external fields (force field, temperature field, electromagnetic field, etc.). ) has been studied. The polymer is modified by radiation technology (corona, ultraviolet, electron beam, gamma ray, microwave, etc.). ), opened up a simple, efficient and pollution-free new way of radiation compatibilization, developed high-strength and high-toughness polymer materials, and realized the high performance of general polymer materials. The design and preparation principle of polymer nanocomposites and the evolution of morphology and structure during processing were studied, which provided a new method for the preparation of polymer nanocomposites. Research on high-performance and functional polymer materials; Scientific principles of high-performance and functional polymer materials; To study the structure and properties, preparation and molding theory of aromatic heterocyclic polymers and their composite systems; The preparation, structure and properties of optical, electrical and magnetic functional polymers and their composites, as well as biomedical polymer materials which are convenient for molding, were studied.

Research on the Theory and Technology of Polymer Molding

Study the non-equilibrium state, solidification behavior and molecular mechanism of polymer fluid, study the mechanochemical reaction and chemical rheology in the processing of polymer materials, establish new technologies to control and develop polymer chain structure, supramolecular structure, texture structure and product appearance, shape and size by using the stress field and temperature field in the processing, and develop new polymer processing equipment.

Polymer materials for oilfield development

The relationship between composition, structure, morphology and properties of polymer materials (drilling fluid additives, oil well cement additives, enhanced oil recovery additives, water treatment agents, surfactants, demulsifiers and crude oil flow modifiers) for oilfield development and their changing laws under application conditions were studied. Polymers with unique multi-component and supramolecular structure were prepared by new methods such as ultrasonic wave and molecular recombination, which provided new materials and technologies for oilfield development.

Recovery, treatment and recycling of waste polymer materials

Study the physical and chemical problems in the recycling of waste polymer materials, develop new technologies for recycling waste polymer materials, and study biodegradable polymer materials.