| abstract |
The present invention relates to a copolymer of hyaluronam and polyhydroxyalkanoates and to a process for its preparation, preferably comprising, as a first step, activation of PHA and, as a second step, modification of hyaluronan by grafting PHA thereto. Preferred activating agents include CDI or HSTU. It also relates to fibers comprising a copolymer and to a process for their manufacture, as well as to products comprising said fibers. |