Boc-NH-PEG8-CH2CH2COOH can be used for experimental production, the product has the characteristics of hydrophilicity, and its character is liquid.The environmental response of BOC-PEG micelles is mainly reflected in their ability to change with external stimuli and their functional selectivity. Boc-peg micelles can be designed and modified according to actual needs. In addition to regulating functional structural units in molecular chains by a single functional polymer, a variety of functional polymers in the form of BOC-PEG can also be realized.