The pipeline pilot protocol for creating a cross-linked polymer network is fairly straightforward to use. One specifies the first reaction (for the case of DGEBA 44'DDS) in which the epoxide of the DGEBA molecule reacts with a primary amine on the 44'DDS molecule creating a secondary amine and a terminated reaction in conjunction with a second reaction in which the secondary amine reacts with yet another epoxide to for a second cross link. I would like to include a etherifcation reaction in which the hydroxide fragment created after the initial epoxide - primary amine reaction reacts with yet another epoxide to form a bond. I understand how to modify the protocol to add an additional reaction, but would like help with specifying the etherificaiton reaction.