Such diester can be prepared from {TAIL ~ said macromolecular diol} by well known acylation methods using reactive functional derivatives of suitable acids, {HEAD ~ e.g. chlorides} of acrylic or methacrylic acid, or of monoalkylesters of maleic, fumaric or itaconic acid, or the anhydride of maleic or itaconic acid 
Such diester can be prepared from { TAIL ~ said macromolecular diol } by well known acylation methods using reactive functional derivatives of suitable acids , { HEAD ~ e.g. chlorides } of acrylic or methacrylic acid , or of monoalkylesters of maleic , fumaric or itaconic acid , or the anhydride of maleic or itaconic acid
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH