Synthesis and Characterization of Hybrid Poly(phenylenemethylene) Having Functionalized Silsesquioxanes (POSS)

Poly(phenylene methylene) (PPM) was isolated in a broad range of molar masses by optimization of the catalytic polymerization of benzyl chloride with SnCl4 or FeCl3, followed by fractionation by Soxhlet extraction or phase separation in concentrated solutions in poor solvents. Low molar mass products were also obtained by quenching the reaction at moderate monomer conversions. Products with number average molar masses (Mn) ranging from 200 to 61,000 g mol−1 were isolated, the latter being an order of magnitude above the previously reported values. DSC analysis of polymers of different molar masses revealed that the glass transition temperature follows the Flory‐Fox equation reaching a plateau value of 65 °C at a molar mass between 10,000 and 20,000 g mol−1. The onset of decomposition temperature of higher molar mass products proceeds above 450 °C (maximum decomposition rate at 515 °C), according to TGA. Furthermore, the substitution pattern of PPM was discussed by study of chemical shifts of the methylene group true(CH2true) by extensive NMR spectroscopy (1H, 13C, DEPT, and HSQC) and by comparison with two mono‐substituted derivatives of PPM—poly(2,4,6‐trimethylphenylene methylene) and poly(2,3,5,6‐tetramethylphenylene methylene)—which were synthesized analogous to PPM. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 309–318

show abstract

Synthesis and fractionation of poly(phenylene methylene)

Braendle

Schwendimann

Niederberger

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

View full text Add to dashboard Cite

show abstract

Organic-inorganic hybrid nanocomposites of poly(sodium 4-styrenesulfonate) and octafunctional polyhedral oligomeric silsesquioxane (POSS)

2010

Self Cite

View full text Add to dashboard Cite

The hybrid nanocomposites of poly(sodium 4-styrenesulfonate) (PSS) and octafunctional polyhedral oligomeric silsesquioxane (POSS) (Cube-aminopropyl) were prepared using Cube-aminopropyl as a cross-linker at various weight ratios. Ionic interactions between PSS and Cube-aminopropyl played a critical role in the formation of new hybrid gels with Cube-aminopropyl. The nanocomposites obtained were insoluble in organic or aqueous solvents. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the hybrid gels were comprised of three-dimensional network structures derived from Cube-aminopropyl as a cross-linker.

show abstract

Preparation of high-refractive-index trimethoxybenzene novolac-titania hybrid

Konishi

2011

Macromol. Res.

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Synthesis and Characterization of Hybrid Poly(phenylenemethylene) Having Functionalized Silsesquioxanes (POSS)

Cited by 5 publications

References 19 publications

Synthesis and fractionation of poly(phenylene methylene)

Synthesis and fractionation of poly(phenylene methylene)

Organic-inorganic hybrid nanocomposites of poly(sodium 4-styrenesulfonate) and octafunctional polyhedral oligomeric silsesquioxane (POSS)

Preparation of high-refractive-index trimethoxybenzene novolac-titania hybrid

Contact Info

Product

Resources

About