Synthesis and characterization of new disilane -containing arylacetylene resin

Good mechanical properties, heat resistance and processability are the basic requirements of matrix resins for high performance heat resistant composites. The existing two types of silicon-containing arylacetylene resins, poly (silylene arylacetylene) (PSA) and poly (silane arylether arylacetylene) (PSEA), cannot balance these three requirements well. To achieve this goal, an attempt was made to synthesize a copolymerized resin containing both diethynylbenzene and diynyl arylether structures in the main chain, silicon-containing poly (diethynylbenzene-co-phenoxyphenoxybenzenediacetylene). By controlling the amount of 1,3-diethynylbenzene ( m-DEB) and 1,3-bis(4′-ethynylphenoxy)benzene ( pmp-BEPB), several random copolymerized resins with various ratios of m-DEB to pmp-BEPB were synthesized by the Grignard reactions. The results show that the introduction of m-DEB could effectively reduce the viscosity of the resin, and thermal stability of the cured resin is improved, but the mechanical strength of the cured resin is slightly reduced. The copolymerized resin has good overall performance when the amount of m-DEB and pmp-BEPB is equal. The processing window of the resin is 56∼169°C, the flexural strength and modulus of the cured resin are 32.9 MPa and 2.7 GPa, respectively, and the temperatures of 5% weight loss (Td5) of the cured resin is 589°C in nitrogen.

show abstract

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

hi@scite.ai

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

Henderson, NV 89052, USA

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 new disilane -containing arylacetylene resin

Cited by 2 publications

References 18 publications

Study on the copolymers of silicon-containing arylacetylene resin and acetylene-functional benzoxazine

Study on the copolymers of silicon-containing arylacetylene resin and acetylene-functional benzoxazine

Synthesis and properties of silicon-containing poly(diethynylbenzen-co-phenoxyphenoxybenzenediacetylene)s

Contact Info

Product

Resources

About