01363nas a2200181   4500008004100000022001400041245004400055210004400099260011000143300001400253490000700267520074600274100001901020700002001039700002201059700002401081856007601105       2014                        eng d  a1463-926200aSustainable polyacetals from isohexides0 aSustainable polyacetals from isohexides  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAUG  a3810-38180 v163 a<p>A single step synthetic protocol to access a small family of renewable diacetals was established. The resultant chiral diacetals are valuable building blocks in pharmaceuticals and materials science. To demonstrate their synthetic competence, isohexide-diacetals (2a-c) were subjected to acetal metathesis polymerization and the corresponding polymers (poly2a-c) were isolated as white solids with molecular weights in the range 3200-27 600 (g mol(-1)). The semi-crystalline polymers displayed glass transition temperatures between 38-65 degrees C and melting temperatures in the range 103-156 degrees C. The isohexide derived polyacetats are stable under practical washing and rinsing conditions but degrade in slightly acidic media.</p>1 aRajput, B., S.1 aGaikwad, S., R.1 aMenon, Shamal, K.1 aChikkali, Samir, H.  uhttps://library.ncl.res.in/content/sustainable-polyacetals-isohexides-0