Abstract
Recent interest is very high in the practical application of rigid polymers as high performance materials. Some rigid polymers have already been commercialized or are in the development stage. However, one of the glaring drawbacks with rigid polymers has been the lack of processibility because of their insolubility and infusibility resulting from polymer backbone stiffness. To solve this problem, the current molecular designs for processable rigid polymers employ the use of (i) flexible linkages or spacers in rigid polymer main chains,1 , 2) (ii) non-linear molecular moieties,3,4) (iii) co 1 merization for breaking the regularity of polymer repeating units5) and (iv) the derivatization of side chains onto polymer backbone6–13) In this work, the molecular design concepts (i) and (iv) were used for improving the processability of the rigid polyspiroacetals.
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