聚乳酸纤维的开发和应用

综述了聚乳酸纤维的国内外研究现状、聚乳酸纤维的性能及加工方法,介绍了聚乳酸纤维的应用领域等.     

聚乳酸纤维的开发和应用

综述了聚乳酸纤维的国内外研究现状、聚乳酸纤维的性能及加工方法，介绍了聚乳酸纤维的应用领域等。     

以MnCO3为模板的聚电解质胶囊的制备

通过沉淀反应制备MnCO3，以乙醇为添加剂成功制备出分散性好的、具有所需尺寸和很窄的粒径分布的球形MnCO3微粒。采用MnCO3粒子为模板吸附相反电荷聚电解质再除去核来制备纯净中空聚电解质胶囊。对组装到MnCO3上制备出来的中空聚电解质胶囊作了研究。结果表明：这种胶囊代表了仅含有所需物质的微米尺度的独立式的聚电解质膜。粒子表面结构决定了所制备的胶囊的形态和胶囊壁厚度。     

Effect of Preparation Process of Functional Polymer Active Materials on Properties of Gadolinium Ion Selective Electrode

Recently we have studied the rare earth ion-selective electrodes with active materials of the func-tional polymers and found that the process chosen for the functional polymers had an effect on the propertiesof gadolinium ion selective electrode besides the effects of their structures.1.Effect of preparation process of the grafted polymers on the properties ofgadolinium ion selective electrodesThe electrode membranes which consist of functional polymers as active materials were prepared by re-action of gadolinium chloride with the radiation grafted clmer of acrlic acid and polystyrene of which     

单分散聚苯乙烯胶乳的制备

本文研究了利用在临界胶束浓度以下进行苯乙烯辐射乳液聚合,制备粒度单分散的聚合物胶乳。发现聚合条件(单体浓度、剂量率、乳化剂浓度、温度)对胶乳的粒子直径影响很大,合成出的胶乳粒子直径一般在600×10~(-10)m～4000×10~(-10)m范围内,通过聚合条件可以控制所获得的聚合物胶乳粒子的直径。在我们的实验范围内,得到一个胶乳粒子直径与聚合条件的关系式:logD=0.28[log([M]/(E~(2.14)I~(0.5)+0.0143T]+2.03     

LLDPE/EVA和LLDPE/EPDM共混体系的辐射凝胶生成动力学研究

研究了辐照线性低密度聚乙烯/乙烯-醋酸乙烯酯共聚物(LLDPE/EVA)共混体系和线性低密度聚乙烯/三元乙丙橡胶(LLDPE/EPDM)共混体系的溶胶分数(S)与辐照剂量(R)间的关系,发现适用于某些纯聚合物辐射交联规律的Charlesby-Pinner关系式和陈-刘-唐关系式不适用于共混体系。建立了LLDPE/EVA和LLDPE/EPDM共混体系的S与R间的关系:R(S+S~(1/2))=1/q_0u_1+α_0R~(βb)/q_0及β_b=∑PW_iβ_1,用此式计算出的结果与实验结果较吻合。     

聚合物共混体系辐射交联研究进展

综述了近年来聚合物共混体系辐射交联研究的新进展,主要包括三个方面:1.聚合物共混体系辐射交联行为及表征;2.辐射交联聚合物共混体系的性能;3.辐射交联聚合物共混体系的应用领域。     

EFFECT OF STRUCTURE OF FUNCTIONAL POLYMER ACTIVE MATERIALS ON PROPERTIES OF GADOLINIUM ION SELECTIVE ELECTRODE

In this paper,the functional polymeric active materials were prepared by the grafting copolymerizationand their structure and properties were studied.The results show that the structure and properties of these ac-tive materials have the relative large effects on the properties of gadolinium ion selective electrodes.