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 acrylic or methacrylic acid, or of monoalkylesters of maleic, fumaric or itaconic acid, or {HEAD ~ the anhydride} of {TAIL ~ 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 acrylic or methacrylic acid , or of monoalkylesters of maleic , fumaric or itaconic acid , or { HEAD ~ the anhydride } of { TAIL ~ 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL