학술논문
脂肪族/芳香族二羧酸酯单体配伍对环保型水溶性共聚酯降解性能的影响 / Effects of monomer compatibility of aliphatic-aromatic dicarboxylic ester on degradation properties of environment-friendly water-soluble copolyesters
Document Type
Academic Journal
Source
印染助剂 / Textile Auxiliaries. 35(6):41-44
Subject
Language
Chinese
ISSN
1004-0439
Abstract
通过将脂肪族二羧酸酯类单体丙二酸二甲酯(DMM)以不同物质的量比嵌入到芳香族水溶性聚酯分子主链中,制备出具有不同分子结构的脂肪族-芳香族水溶性共聚酯(WSACP).经24～96 h酶解和水解实验后,以WSACP的分子质量降低率、玻璃化转变温度及其膜的表面形貌变化为主要指标,研究了DMM与芳香族单体对苯二甲酸二甲酯(DMT)的单体配伍对WSACP降解性能的影响.结果表明:随着DMM与DMT物质的量比的增加,WSACP的酶解性能显著提升,其水解性能却并未随该物质的量比的增加发生明显变化.
The water- soIubIe aIiphatic- aromatic copoIyesters (WSACP) with different moIecuIar struc-tures were prepared through incorporating various moIar amount of aIiphatic two carboxyIic ester monomer di-methyI maIonate (DMM) into the backbone of aromatic water- soIubIe poIyester. After the enzymoIysis and hy-droIysis experiments of 24～96 h, used the reduction rate of moIecuIar weight, the gIass transition temperature and the surface morphoIogy of WSACP as the main indicators, the effects of monomer compatibiIity of DMM/DMT (dimethyI terephthaIate) on the degradation properties of WSACP were studied. The resuIts showed that when the moIar ratio of DMM/DMT increased, enzymatic degradation property of WSACP was substantiaIIy im-proved whiIe the hydroIytic degradation property showed no marked changes.
The water- soIubIe aIiphatic- aromatic copoIyesters (WSACP) with different moIecuIar struc-tures were prepared through incorporating various moIar amount of aIiphatic two carboxyIic ester monomer di-methyI maIonate (DMM) into the backbone of aromatic water- soIubIe poIyester. After the enzymoIysis and hy-droIysis experiments of 24～96 h, used the reduction rate of moIecuIar weight, the gIass transition temperature and the surface morphoIogy of WSACP as the main indicators, the effects of monomer compatibiIity of DMM/DMT (dimethyI terephthaIate) on the degradation properties of WSACP were studied. The resuIts showed that when the moIar ratio of DMM/DMT increased, enzymatic degradation property of WSACP was substantiaIIy im-proved whiIe the hydroIytic degradation property showed no marked changes.