1.   The situation changes if the blocks are composed of two different polymers which, as a pair, can form a miscible blend.

2.   We have seen that the magnitude of T g varies over a wide temperature range for different polymers.

3.   As the chip is exposed to the various gases that make up an odor, different polymers expand, changing the pattern of conductivity on the chip.

4.   Different polymers respond to different chemicals with different light-reflecting changes.

5.   It is difficult to recycle, mainly because of the problem of separating the different polymers.