Thesubstitution of bromine atoms is on the tertiary carbon of main-chain of the polymersprimally.
反应以自由基机理进行，溴取代主要发生在主链上的叔氢原子上。
2
Although the main attraction was the soup, Roze's chain shops also set a new standard for dining out, which helped to establish Roze as the inventor of the modern restaurant.