Polymer Bulletin

, Volume 74, Issue 6, pp 2391–2399 | Cite as

Syntheses and thermal properties of polyesters bearing a carbosilane repeating unit

  • Ayumu Karimata
  • Kozo Matsumoto
  • Takeshi EndoEmail author
Original Paper


New polyesters bearing a carbosilane repeating unit (–C–Si(CH3)2–C–), 1a and 1b, and reference polyesters with the corresponding carbon-based units 2a and 2b were synthesized and evaluated to study the effect of the carbosilane segment on their thermal properties. DSC analysis revealed that 1a and 1b exhibited glass transition temperatures (T g) of −72.6 and 11.6 °C, respectively, which were lower than those of 2a and 2b (–53.2 °C for 2a and 63.6 °C for 2b), indicating that the substitution of carbon atoms on polyester backbone with silicone atoms is effective method to change the T g of polyesters. Furthermore, 1a and 1b showed good thermal stability (T d5 = 304 °C for 1a and 309 °C for 2a). These results indicate that carbosilane segment may be a promising soft segment for developing new polyester-based materials.


CDCl3 Nuclear Magnetic Resonance Differential Scanning Calorimetry Soft Segment Thermo Gravimetric Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was financially supported by JSR Co., Ltd.

Supplementary material

289_2016_1834_MOESM1_ESM.docx (2.2 mb)
Supplementary material 1 (DOCX 2242 kb)


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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Molecular Engineering InstituteKindai UniversityIizukaJapan
  2. 2.Department of Biological and Environmental ChemistryKindai UniversityIizukaJapan

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