Synthesis of highly refractive and highly fluorescent rigid cyanuryl polyimines with polycyclic aromatic hydrocarbon pendants

Abstract

A series of rigid cyanuryl polyimines, polyguanamines (PGs) bearing polycyclic aromatic hydrocarbon pendants were successfully synthesized from 2-substituted 4,6-dichloro-1,3,5-triazine and aromatic diamine monomers.

Kinetic Studies of Bischloroimide Monomers for the Facile Synthesis of Different Molecular Architecture Poly(phthalimide‐co‐naphthalimide)s

“…Homopolymers PI‐3 a and PI‐3 b exhibited T g of 198 and 319 °C. The increase of T g of PI‐3 b was attributed to the greater rigidity and highly packed structure due to strong intermolecular π‐π stacking interactions driven by naphthalimide moiety with aromatic rings ,,,. Copolymer PI‐3(c–e) showed T g s in the range of 244–259 °C (Figure S4).…”

Excellent performance of aromatic polyguanamines induced by multiple hydrogen bondable tetraazacalix[2]arene[2]-triazine ring in their main chain

“…First, l -PG was prepared as a non-azacalixarene-type polymer in accordance with the literature. 32 For instance, poly(AnDCT- m PDA) [ l -PG( m PDA)] was prepared by solution polycondensation of AnDCT with m PDA in NMP (total monomer concentration was 1.0 mol L −1 ); 65% yield, M n = 5000, M w / M n = 3.6 (Run 7, Table 1 ). Relatively low M n of the polymer is attributable to the low solubility of l -PG( m PDA) with accompanying the formation of cyclic oligomers due to the meta phenylene linkage.…”

“…As a solubilizing group, an alicyclic pendant such as adamantly group (AdDCT) is somewhat effective with keeping the thermal stability, but the n 594 of the brittle thin film is only 1.672 (for BAFL). 32 Simple anilino pendant in AnDCT is more effective to suppress over-aggregation, so the soluble transparent high M n polymers are successfully obtained when BAFL is used to avoid cyclization. 32 T g of the polymer is 287 °C, and its n 594 is improved up to 1.709.…”

“…They are usually prepared from triazine dichloride and diamine monomers in solution, with a variety of derivatives having been synthesized to date. [27][28][29][30][31][32][33][34] The guanamine functional group was also found in Wang's aza-bridged calix [2] arene [2]triazine (mPDA 2 CyC 2 ), which has two active C-Cl bonds; therefore, we expected that a mPDA 2 CyC 2 residue would exhibit a unique effect on PG structure. In particular, if rigid aromatic diamines were combined with mPDA 2 CyC 2 during polycondensation, then a new series of condensation polymers having a tightly packed structure should be obtained.…”

High-Density Packing of Amorphous Polymer with Bulky Aromatic Rings in Interfacial Molecular Films

“…Few authors have investigated the crystal structure and morphology of the organized molecular films of aromatic polyamides ( para ‐type aromatic amides) with long alkyl side chains based on systematic changes in the side chain length . Previous studies mainly focused on the chemical structure of the backbone, and block copolymers with aromatic amide backbones as a hard segment …”