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    • 2. 发明公开
    • 생분해성이 우수한 새로운 지방족 폴리에스테르 이오노머수지와 그의 제조방법
    • 具有优异生物降解性的含有离子基团的新型聚酰亚胺离子树脂及其制备方法
    • KR1020040078454A
    • 2004-09-10
    • KR1020030013403
    • 2003-03-04
    • 학교법인 한양학원
    • 임승순김동국유영태한상일
    • C08G64/00
    • C08G63/83C08G63/672C08G63/6886C08G63/85
    • PURPOSE: A novel aliphatic polyester ionomer resin is provided to improve the biodegradability compared to the conventional aliphatic polyester resin by introducing ionic groups that improve hydrophilicity. The aliphatic polyester ionomer resin can suitably substitute the conventional non-biodegradable plastics to reduce the environmental pollution. CONSTITUTION: The aliphatic polyester ionomer resin with excellent biodegradability comprises 41-54wt% of a polyhydric aliphatic or alicyclic glycol, 36-52wt% of an aliphatic polycarboxylic acid or its anhydride and 1-23wt% of alkali metal salts of an aliphatic or aromatic sulfone acid, wherein resin molecules form chemical bonds with alkali metal salts of sulfonic acid. The aliphatic polyester ionomer resin is prepared by: adding polyhydric aliphatic or alicyclic glycol, an aliphatic polycarboxylic acid or its anhydride and alkali metal salts of an aliphatic or aromatic sulfonic acid; carrying out esterification of the resulted mixture; and carrying out polycondensation of the mixture by adding a catalyst for polycondensation at 220-260deg.C.
    • 目的:通过引入提高亲水性的离子基团,提供了一种新型脂族聚酯离聚物树脂,以提高与常规脂肪族聚酯树脂相比的生物降解性。 脂肪族聚酯离聚物树脂可以适当地代替常规的非生物降解塑料来减少环境污染。 构成:具有优异的生物降解性的脂肪族聚酯离聚物树脂包含41-54重量%的多元脂肪族或脂环族二醇,36-52重量%的脂肪族多元羧酸或其酸酐和1-23重量%的脂肪族或芳香族砜的碱金属盐 酸,其中树脂分子与磺酸的碱金属盐形成化学键。 脂肪族聚酯离聚物树脂是通过添加多元脂肪族或脂环族二醇,脂肪族多元羧酸或其酸酐和脂肪族或芳香族磺酸的碱金属盐来制备的; 进行所得混合物的酯化; 并通过在220-260℃下加入缩聚催化剂进行混合物的缩聚。