合成印迹聚合物的新方法及在食品安全中的应用

分子印迹聚合物是一种具有专一识别作用的聚合物,具有预定型、识别性和实用性的特点,因此被广泛地应用在食品安全、农残分析和药物控制等方面。制备分子印迹聚合物除了本体聚合法、原位聚合法、悬浮聚合法、表面印迹等传统方法之外,还有原子转移自由基聚合法、可逆加成-断裂链转移自由基聚合等新方法。原子转移自由基聚合法、可逆加成-断裂链转移自由基聚合从化学角度实现了对自由基活性及其链增长反应的控制,具有高聚合物链端可控和修饰密度高等优点,为分子印迹聚合物的合成提供了有效的方法。本文重点综述了分子印迹聚合物传统合成方法、原子转移自由基方法和可逆加成-断裂链转移自由基聚合法及其在食品安全中的应用。

New methods for preparation of molecularly imprinted polymers and their application in food safety

Molecularly imprinted polymer was one kind of polymers which had the specific effect. It has the advantage of pre-determined, recognition and practicability. Therefore it was widely used in analysis of food safety, pesticide residues, and drug control. Normal preparation methods of molecular imprinted po-lymers were bulk polymerization, in situ polymerization, suspension polymerization, and surface imprinting. Reversible addition-fragmentation chain transfer polymerization and atom transfer radical polymerization were new methods developed in recent years. Their advantages included a modified high density, a controllable high polymer chain, and could get many new polymers. This paper reviewed some kind of synthesis methods of molecular imprinted polymers and the application in food safety.