Thermal properties of aliphatic polyesters

Bis(amidinate) tin(II) complex (1) was reported as active catalyst for ring‐opening copolymerization of cyclic anhydrides and epoxides via a binary catalyst system. Polymerizations of six combinations of epoxides and cyclic anhydrides were carried out giving highly alternating poly(anhydride‐alt‐epoxide) with narrow dispersities, except for cyclohexene oxide where significant amount of ether linkage up to 62 % was observed. This ether linkages could be diminished by increasing the amount of cocatalyst to over 3 equiv. Six well‐known cocatalysts were screened where PPNCl was found to be the best cocatalyst.

show abstract

Ring‐Opening Copolymerization of Cyclic Anhydrides and Epoxides by bis(amidinate)tin(II) Complex via Binary Catalyst System

Thumrongpatanaraks

Pongpanit

Chumsaeng

et al. 2022

ChemistrySelect

View full text Add to dashboard Cite

show abstract

Effect of enhanced quenching on properties of melt spun multifilament poly[3-hydroxybutyrate] yarns

Akdag Ozkan,

Hockenberger,

Cam

et al. 2024

Textile Research Journal

View full text Add to dashboard Cite

Bacterial poly-3-hydroxybutyrate is a thermoplastic biopolyester that is considered a potential alternative to traditional fossil-based plastics due to its rapid biodegradation performance in both soil and marine environments and its compostability. Due to problems in thermal and crystallization behaviors of the bacterial poly-3-hydroxybutyrate polymer, an improvement has been made in the cooling channel of the conventional fiber spinning process. Using an enhanced quench channel, named as a half tube on a conventional melt spinning line, melt spinning of the bacterial poly-3-hydroxybutyrate multifilament fibers is successfully carried out. The maximum crystallization temperature of polymers was taken into account while adjusting the quenching process. The study examined the impact of varying drawing ratios and the designed quenching apparatus on the thermal (differential scanning calorimetry), mechanical (tensile and drawing force tests), morphological, and crystal structure characteristics of fibers. The quenching apparatus has visibly created a homogeneous melt flow under the spinnerets. While it has a negative impact on fiber cross-sectional formation, raising the draw ratio greatly enhances mechanical properties.

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

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.

Thermal properties of aliphatic polyesters

Cited by 2 publications

References 210 publications

Ring‐Opening Copolymerization of Cyclic Anhydrides and Epoxides by bis(amidinate)tin(II) Complex via Binary Catalyst System

Ring‐Opening Copolymerization of Cyclic Anhydrides and Epoxides by bis(amidinate)tin(II) Complex via Binary Catalyst System

Effect of enhanced quenching on properties of melt spun multifilament poly[3-hydroxybutyrate] yarns

Contact Info

Product

Resources

About