In the present work, the structure and impact properties of copolymers of polypropylenewith low ethylene contents have been investigated. Based on the results o
The isothermal crystallization of poly (ethylene terephthalate ) (PET),which is free of catalyst, stabilizer, oligomer and diethylene glycol (DEG), was studied
The dynamics of a series of poly(n-alkyl methacrylates) is investigated by means of <sup>13</sup>C spin-lattice relaxation experiments. The results show that the