Structural, thermal and rheological studies on newly developed polyesters randomly copolymerized with poly (tetramethylene glycol) (PTMG)

Osamu Matsumoto, Atsushi Hotta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Poly (cyclohexanedimethanol cyclohexanedicarboxlic acid) (PCC), a fairly newly synthesized polyester, has been studied. Having a good experience of increasing both thermal stability and service temperature when applied to typical polymers, poly (tetramethylene glycol) (PTMG) was selected as a softening agent that was randomly copolymerized into the PCC chains. Another widely-used polyester, poly (ethylene terephthalate) (PET) was also produced in order to investigate the effect of PTMG, which was compared with the properties of the newly developed random PCC-PTMG copolymers (PCCP). In this study, the crystalline structures, the thermal and the mechanical properties of both PCC and PET containing different ratios of the random segment of PTMG were investigated by differential scanning calorimetery (DSC) and tensile tester. It was found that the crystallization rate of pure PCC was significantly slow, whereas for PCCP, PTMG effectively accelerated the crystallization rate with increasing PTMG, and the sample with 25 wt% of PTMG had the fastest crystallization rate in all PCCP samples. Here, the PTMG acted as an accelerator, simultaneously depressing the movement of PCC molecular chains. The elastic recovery test indicated that the ability of PTMG as a softening agent was highly demonstrated at 20 wt% of PTMG. The results of PCCP were compared with those of PET-PTMG copolymers (PETP) and it was found that there were optimum values of PTMG for the crystallization rate on both samples. Additionally, the results of the elastic recovery test indicated that the softening effects observed in PCCP were more pronounced than those observed in PETP.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages43-48
Number of pages6
Volume1151
Publication statusPublished - 2008
Event2008 MRS Fall Meeting - Boston, MA, United States
Duration: 2008 Dec 12008 Dec 5

Other

Other2008 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period08/12/108/12/5

Fingerprint

Glycols
Polyesters
polyesters
glycols
copolymers
Copolymers
Crystallization
softening
crystallization
Hot Temperature
recovery
Recovery
Polyethylene Terephthalates
molecular chains
polyethylene terephthalate
test equipment
Polyethylene terephthalates
Particle accelerators
Polymers
Thermodynamic stability

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Structural, thermal and rheological studies on newly developed polyesters randomly copolymerized with poly (tetramethylene glycol) (PTMG). / Matsumoto, Osamu; Hotta, Atsushi.

Materials Research Society Symposium Proceedings. Vol. 1151 2008. p. 43-48.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Matsumoto, O & Hotta, A 2008, Structural, thermal and rheological studies on newly developed polyesters randomly copolymerized with poly (tetramethylene glycol) (PTMG). in Materials Research Society Symposium Proceedings. vol. 1151, pp. 43-48, 2008 MRS Fall Meeting, Boston, MA, United States, 08/12/1.
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