CAJ | 학술논문

采用硬脂酸和乙酸酐对端羟基超支化聚酯的端基进行改性,并将其与端羟基聚丁二烯型聚氨酯(丁羟聚氨酯)形成互穿聚合网络.结果表明,硬脂酸改性超支化聚酯/丁羟聚氨酯互穿聚合物网络的最大强度和最大延伸率均比空白胶片提高了3倍以上,而乙酸酐改性的超支化聚酯与丁羟聚氨酯形成的互穿聚合物网络存在明显的相分离.
채용경지산화을산항대단간기초지화취지적단기진행개성,병장기여단간기취정이희형취안지(정간취안지)형성호천취합망락.결과표명,경지산개성초지화취지/정간취안지호천취합물망락적최대강도화최대연신솔균비공백효편제고료3배이상,이을산항개성적초지화취지여정간취안지형성적호천취합물망락존재명현적상분리.
Hydroxyl terminated hyperbranched polyester was modified by stearic acid and acetic anhydride,the resultant products were interpenetrated with hydroxyl terminated polybutadiene polyurethane (HTPB-PU).The result showed,stearic acid modified hyperbranched polyester interpenetrate with HTPB-PU making the tensile strength and elongation 3 times higher than that of control sample.However,acetic anhydride modified hyperbranched polyester was unmiscible with HTPB-PU.