Synthesis and characterization of AB block copolymers based on polyhedral oligomeric silsesquioxane

Effects of hetero‐armed star‐shaped PCL‐PLA polymers with POSS core on thermal, mechanical, and morphological properties of PLA

“…In the FTIR spectrum of POSS-Cl (Figure 1(a)), we observed a broad Si O Si band at 1080 cm −1 , a Si O stretching peak at 690 cm −1 , and aliphatic C H stretching peaks at 2870-2950 cm −1 . 43 The presence of the azide peak at 2098 cm −1 in the FTIR spectrum of Figure 1 44 The absorption at 1295 and 1240 cm −1 represents the C O and C C stretching of PCL. PLA shows characteristic bending frequencies for CH 3 asymmetric and CH 3 symmetric have been identified at 1452 and 1360 cm −1 , respectively.…”

Recent developments in nanostructured polyhedral oligomeric silsesquioxane‐based materials via ‘controlled’ radical polymerization

“…The authors investigated the thermal properties of the obtained POSS–PMMA nanocomposites using DSC and TGA and observed an enhancement in T g and thermal stability of the nanocomposites as compared with pristine PMMA, which was mainly attributed to homogeneous and molecular‐level dispersion of POSS nanocages in PMMA matrix. Employing POSS‐Cl (Scheme (c)) as ATRP initiator, the same group further prepared POSS–PMMA‐ b ‐PS block copolymers under similar conditions to those mentioned earlier . The polydispersity of the obtained block copolymers was relatively high: 1.36 and 1.49, respectively, for POSS–PMMA and POSS–PMMA‐ b ‐PS.…”

Novel PS Composites by Using Artificial Lamellar Hybrid from Octa(γ-chloroaminopropyl) POSS and Surfactant

“…After decades of inactivity, research on POSS was reinvigorated in the 1990s, spawned by the discovery of a method to prepare polymerizable POSS. Now they are becoming useful building blocks for generating kinds of polymer nanocomposites with improved properties based on their strictly controlled and tailorable structure [13] .…”