■ 신규 감온색소재료의 설계, 합성 및 변색특성 개발 - Pariser-Parr-Pople MO, DMol3 계산을 이용한 신규 감온색소분자의 구조설계 - Leuco dye를 기반으로 한 chromophore의 골격을 ...
■ 신규 감온색소재료의 설계, 합성 및 변색특성 개발 - Pariser-Parr-Pople MO, DMol3 계산을 이용한 신규 감온색소분자의 구조설계 - Leuco dye를 기반으로 한 chromophore의 골격을 이용하여 다양한 신규 감온색소 재료를 디자인, 합성하여 합성물질 분석 및 광학적 특성분석을 진행함. - 광학적 고감도를 가진 Fluoran계 Self-Thermochromic, 신규 Betain 감온볂색 색소 합성. - 가역적 감온변색특성의 PDA(Polydiacetylene) 고분자 형태 감온색소의 합성 및 성능평가
■ 신규 감온색소재료의 Scale-up 및 상용화 formulation 개발 - Lactone계/Amionfluoran계, BDF계, 신규 구조의 CVL 감온색소 합성 및 물성평가 - 구조적으로 빛에 취약한 열변색 색소의 섬유 적용 시 변·퇴색을 최소화하기 위한 목적으로 내구성 증진제를 합성(Benzophenone류, Triazole류, Triazine류) - 1~3년도 신규 개발염료 4종에 대한 Lab scale up(500g)
(출처 : 보고서 요약서 3p)
Abstract ▼
Ⅳ. R & D results
■ Design, synthesis and chromism characteristics of new thermochromic dye - By using the framework of c...
Ⅳ. R & D results
■ Design, synthesis and chromism characteristics of new thermochromic dye - By using the framework of chromophore based on Leuco dye, various new thermochromic dye materials are designed and synthesized, and the results are derived by performing synthesis analysis, optical characterization, and related experiments at different temperatures. - A total of four different fluoran and two lactones were synthesized. In the case of four different fluoran, the originally planned monomer type was confirmed by structural analysis. The acid activator agent and low melting solvent were mixed to confirm the properties as a thermochromic dye. - Set the method to exhibit a highly sensitive color change characteristic (Self-Thermochromic) without action of initiator (Color Developer) in response to the external stimulus as a research objective. Therefore, in this study, we conducted researches on the introduction of new parent and substituent groups for thermochromic chromism of the Lactam ring, which is caused by the opening and closing of the Lactam ring, without the action of the initiator of the thermochromic material. - Synthesis of five Betaine dyes synthesizing high sensitivity and reversible thermochromic characteristics using various scavengers and ligands. The result is obtained by structural analysis of materials, strenght analysis, or experiments according to temperature changes.
■ Synthesis of new thermochromic dye and scale up and development of commercialization formulation - A new dye material was synthesized by diversifying fluoran system as a new thermochromic dye material and six new thermochromic dye materials (four kinds of fluoran and two kinds of lactone) were designed and synthesized by using chromophore framework based on Leuco dye , Synthetic and optical characterization, and associated experiments at different temperatures. - Synthesis of novel Lactone / Aminofluoran, CVL and BDF gradation pigments Syntheses and Synthesis of Durability Additives (Durability enhancers were synthesized to minimize fading and discoloration when applied to thermochromic pigments which are structurally weak to light - Benzophenone, Triazole, Triazine) - Secure of Lab scale up (500g) technology for four new developed dyes in 1-3 years and experiment to confirm the ability of heat development discoloration for five new developed dyes. - Completion of sample delivery to second research consortium for production of prototype with self-synthesis result and registration for patent application of new heat-sensitive discoloration dye for 1st year
