Recent studies on eucommia ulmoids (EU) gum are summarized.The present paper firstly introduced the extraction methods

macromolecular structure and biological synthesis mechanism of EU gum; and introduced the crystalline characterisitics of EU gum

such as the determination of crystal form of EU gum

the preparation and the conversion of various crystal forms of EU gum

the melting points and fusion enthalpy of EU gum

the crystallization rate and its dependent factors of EU gum and so on.Then

this paper highlighted the studies of application of EU gum which was made breakthrough progress by our group in recent years.Such as

the three stages during the vulcanization progress of EU gum

the critical elastic turning law of EU gum

the two active dynamic mechanical zones of EU gum controlled by temperature

the five dynamic mechanical behaviours of EU gum controlled by crosslinking degree

and the comparative studies of EU gum and synthetic trans -1

4-polyisoprene and so on.In the end

the future direction of study of EU gum is envisaged.