Chloropropylene epoxide homopolymer (CER) crosslinked by DCPD (COOK)2 as crosslinker with 88.75％ gel content was obtained by solution reaction

the effect of the kinds of solvent

the dosage of crosslinker and calalyst(TBAB)

reaction temperature and time on the amount of polymer gel formation were studied．The results indicated that the crosslinking reaction accelerates with the acsension of the reaction temperature and time

increase of dosage of crosslinker and catalyst．Solvent affected the crosslinking reaction and the result indicated that the reaction was most efficient in DMF．It was proved by IR that the gel was generated through esterification between the chlorine on carbon of CER and the carboxylic salt group of the crosslinker by eliminate KCl．The test of reaction solubility of crosslinked CER react with maleic anhydride (MA) indicated that the crosslinked CER exhibits a thermally reversible behavior due to the dimmer(decyclopentadiene)／monomer(cyclopentadiene) conversion of -DCPD-moieties in the crosslinkage of the copolymer

the percentage of thermally reversible conversion were decrease with the ascension of the reaction temperature

the amount of crosslinker increasing．Based on the crosslinking reaction

a novel thermoplastic elastomer of CER with higher heat-resistance and oil-resistance was obtained.