1) melt condensation
熔融缩合
1.
The results showed that the optimum procedure of preparing the important intermediate N-(4\'-nitrobenzoyl)-2,4-dinitro benzenamine(NDBA) by melt condensation at 170～180℃ could obtain NDBA with purity of 97% min.
研究结果表明:170～180℃下的熔融缩合是制备三硝基中间体N-(4\'-硝基苯甲酰基)-2,4-二硝基苯胺(NDBA)的优选工艺,提纯后可获得纯度97%以上的NDBA,收率68。
2) melt condensation polymerization
熔融缩合聚合
1.
Poly(ethylene glycol oxalate-co-ethylene glycol succinate) was synthesized by melt condensation polymerization.
采用熔融缩合聚合的方法 ,在醇、酸等摩尔比的前提下 ,琥珀酸与草酸的摩尔比为 1/ 2 2 ,催化剂为 0 。
3) melt polycondensation
熔融缩聚
1.
Direct synthesis of ploy(L-lactic acid) by melt polycondensation;
熔融缩聚合成聚L-乳酸的研究
2.
Chemical reaction kinetics of melt polycondensation of lactic acid under microwave irradiation;
微波辐射乳酸熔融缩聚反应动力学
3.
Engineering analysis of viscosity increasing process of polyester melt polycondensation;
聚酯熔融缩聚增黏过程的工程分析
4) melting polycondensation
熔融缩聚
1.
A series samples of thermotropic liquid crystalline copolyesters of p-acetoxybenzoic acid (PABA), acetoxybiphenol A and therephalic acid were synthesized by melting polycondensation .
以对-乙酰氧基苯甲酸(PABA),4,4′-二乙酰氧基二苯基丙烷(ABPA)和对苯二甲酸(TPA)为原料,采用熔融缩聚法合成了热致性液晶共聚酯PABA-ABPA-TPA。
2.
Thermotropic liquid crystalline copolyesters of BHET and PHB were firstly synthesized by melting polycondensation using BHET and PHB as coponents.
本实验第一次以对苯二甲酸乙二醇酯(BHET)和对羟基苯甲酸(PHB)为原料,采用熔融缩聚的方法合成了BHET-PHB热致液晶共聚酯。
5) solution polycondensation combined with melt polycondensation
溶液与熔融缩聚相结合
1.
In order to investigate the synthesis of Poly(butylene succinate)(PBS) screening of catalyst for polymerization reaction was used firstly,and then,biodegradable material Poly(butylenes succinate) was synthesized through melt polycondensation,solution polycondensation,and solution polycondensation combined with melt polycondensation.
为了研究PBS的合成,首先对聚合反应的催化剂进行了筛选,然后通过熔融缩聚法、溶液聚合法、溶液与熔融缩聚相结合法3种合成工艺合成了生物可降解聚酯PBS,并对合成效果进行了比较。
6) melt polymerization
熔融聚合
1.
Study on improvement of melt polymerization of polylactic acid;
聚乳酸的熔融聚合法的改进研究
2.
Synthesis and characterization of polyglycollic acid via direct melt polymerization;
直接熔融聚合聚乙醇酸的合成与表征
3.
Based on the synthetic research, using PTA, 1,3-PDO as raw materials, 300L PTT melt polymerization with Ti/Sb/Co/P composite catalyst system was carried out.
以PTA、1,3-PDO为原料,在小试合成研究的基础上,采用Ti/Sb/Co/P复合催化体系进行了300L釜规模的PTT熔融聚合研究,并研究了PTT产品的物理机械性能。
补充资料：熔融
分子式：
CAS号：
性质：温度升高时，分子的热运动能增大，导致结晶破坏，物质由晶相变为液相的过程。熔融是一级相转变，熔融有热焓、熵和体积的增大。发生熔融的温度叫熔点或熔融温度。小分子晶体的熔点温度范围很窄（一般小于1℃），而聚合物由于结晶不完全；其熔融温度往往是一个较宽的范围（一般为10～20℃）。
CAS号：
性质：温度升高时，分子的热运动能增大，导致结晶破坏，物质由晶相变为液相的过程。熔融是一级相转变，熔融有热焓、熵和体积的增大。发生熔融的温度叫熔点或熔融温度。小分子晶体的熔点温度范围很窄（一般小于1℃），而聚合物由于结晶不完全；其熔融温度往往是一个较宽的范围（一般为10～20℃）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条