China Petroleum Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Songbai Tian

Cheng Li

Hu Li

Xiaowei Wang

Qundan Zhang

Xinyu Zhu

An ester polymer has a structure represented by the following formula (I): T represents the backbone of the ester polymer; the group B is each independently selected from O or S; the group R each independently represents Chydrocarbylene group; the group A is each independently selected from O, S or NR&#x2033;; the group R' each independently represents Chydrocarbylene group; the group Nis each independently selected from H or &#x2014;R&#x2033;&#x2032;&#x2014;B&#x2032;H, wherein at least one of the two Non the same nitrogen atom is &#x2014;R&#x2033;&#x2032;&#x2014;B&#x2032;H; the group R&#x2033; is each independently selected from H or Chydrocarbyl group; the group R&#x2033;&#x2032; each independently represents Chydrocarbylene group; the group B&#x2032; is each independently selected from O or S; each y independently represents an integer between 1 and 6; and m is an integer between 1 and 10.

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Songbai Tian