위치-선택적으로 치환된 셀룰로스 에스터

• Main Authors: SHARPE ROBERT JACKS, ELKINS CASEY LYNN, WANG BIN
• Format: Patent
• Language: Korean
• Published: 13.11.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; POLYSACCHARIDES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

본 출원은 위치-선택적으로 치환된 셀룰로스 에스터, 위치-선택적으로 치환된 셀룰로스 에스터로 제조된 필름, 및 그의 제조 방법을 개시한다. 위치-선택적으로 치환된 셀룰로스 에스터는 다양한 아실 공여체 또는 아실 공여 전구체와 트리플루오로아세트산 무수물 및 셀룰로스를 사용하여 합성된다. The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.