Dicyclopentadiene → HCID 169798, compound

HRID 1862551Notes

Reaction equation

[CH2:1]1[CH:5]2[CH:6]3[CH:10]=[CH:9][CH:8]([CH:4]2[CH:3]=[CH:2]1)[CH2:7]3.[CH2:11]=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1>C1(C)C(C)=CC=CC=1>[CH2:1]1[CH:5]2[CH:6]3[CH:10]=[CH:9][CH:8]([CH:4]2[CH:3]=[CH:2]1)[CH2:7]3.[CH2:11]=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

Participants

Conditions

Temperature: 260 °C

Procedure

An autoclave having an internal volume of 1 liter was charged with 228 g of xylene, and heated up to 260° C. in an atmosphere of a nitrogen gas. A mixture of 190 g of dicyclopentadiene and 190 g of styrene was added over 2 hours while being stirred. The reaction was further conducted at the same temperature for 4 hours. An unreacted monomer, a low polymer and the solvent were removed from the resulting polymer solution to obtain a dicyclopentadiene-styrene copolymer having a number-average molecular weight of 690, a softening temperature of 110° C., a bromine value of 62 g/100 g and an aromatic ring content of 46% by weight.

Workup

additionwas added over 2 hours
customAn unreacted monomer, a low polymer and the solvent were removed from the resulting polymer solution

Sources & evidence

ORD record: ord-dbb5066cb51a482dbdffb487f2304130
Source dataset: uspto-grants-2003_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06538063B1

Reaction notes

Loading…