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