After experimental bleaching a second order frequency-doubling signal of the cross-linked material has bee attenuated for 28%, but the side chain materia attenuated up to 75%.

The post-crosslinking fiber was prepared by cross-linking PP-ST-DVB fiber with p-xylylenedichloride according to the friedel-crafts reaction and was given a series of synthesis tests.

The finishing coat has excellent physical-mechanical properties after the crossing agent is added.