Introduction of Spacer Arm

In the case of conventionally produced polymers, the positioning of functional groups at the end of a spacer arm involves a multi-step synthesis, in addition to those needed for the introduction of the functional groups themselves. For the copolymer resins produced by the active ester method, the concept of spacer arm is an integral element of the polymer design. Thus, the desired functionality, already positioned at the end of a 1- to 9-bond spacer 

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