As for this invention, following to the manufacturing method and aforementioned manner of the building a bridge copolymer which includes the anionic generation basis/the anionic basis due to the radical copolymerization which you follow precipitation polymerization modulo it regards the copolymer, and its use which are obtained.< Choice figure >It is not本発明は、沈殿重合法に従ったラジカル共重合によるアニオン生成基/アニオン基を含む架橋コポリマーの製造法、前記方法に従って得られるコポリマー、及びその使用に関する。【選択図】なし