Fluorescent additive for estimation of compatibility of polyester blend by imipramine-containing polymer

ABSTRACT

The effects of adding imipramine-containing polymer (PImip-Fl) in two kinds of polyester/lysine triisocyanate (LTI) blends were investigated. PImip-Fl was prepared by Suzuki–Miyaura coupling reaction of dibromoimipramine hydrochloride and dioctylfluorene diboronic acid. The addition of PImip-Fl gave fluorescence to resins [poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL)], and its fluorescent maximum wavelength (λ_max) depended on the resin. PImip-Fl was used as a functional additive for the estimation of compatibility of PLA/PCL blend composite. The addition of LTI to the resins/PImip-Fl blend composites afforded a shorter wavelength shift of the fluorescent λ_max. This suggested that the method using PImip-Fl is adaptive for the estimation of compatibility of the blend composite.

KEYWORDS:

• Compatibility
• fluorescent additive
• imipramine
• reactive blend

Additional information

Funding

A part of this research was performed under the Cooperative Research Program of “Network Joint Research Center for Materials and Devices.” A part of this research was also supported by The Naito Science & Engineering Foundation and JKA.