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- Matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI TOF MS) was used for analysis of poly(arylene phosphonate) cyclic oligomers. 用基质辅助激光解吸电离飞行时间质谱方法对一系列芳香环状聚膦酸酯低聚物进行了结构分析。
- The effect of metal cationization agents on this kind of novel aromatic cyclic oligomers was studied and silver trifluoracetate was considered as a suitable cationization agent. 探讨了金属阳离子对此类芳香环状低聚物的影响,认为三氟乙酸银是此种芳香环状低聚物的有效阳离子剂。
- Keywords Cyclic oligomer carbonates;Polycarbonate;Ring opening polymerization; 环状碳酸酯低聚物;聚碳酸酯;开环聚合;
- Synthetic methods and their research progress of aromatic cyclic oligomers, including one-step polymerization, multi-step polymerization and cyclo-depolymerization are rev. 本文按一步合成法、多步合成法和解聚成环法三种不同路线综述了芳香环状低聚体的制备及其研究现状。
- Keywords polyphenlene sulfide;cyclic oligomer;synthesis;characterization;thermal-polymerization; 聚苯硫醚;环状低聚物;合成;表征;热聚合;
- Keywords MALDI-TOF-MS;Positive ion agent;Aromatic cyclic oligomer;Cationization agent;Polymer degree; 基质辅助激光解吸电离飞行时间质谱;芳香环状低聚物;阳离子剂;聚合度;
- Keywords polymerization process;concentrated liquid;cyclic oligomer;polycaprolactam; 聚合工艺;浓缩液;环状低聚物;聚己内酰胺;
- Keywords Poly（arylene phosphonate） cyclic oligomer;matrix assisted laser desorption ioniation time of flight mass spectrometry;matrix;cationization agent; 芳香环状磷酸酯齐聚物;基质辅助激光解吸电离飞行时间质谱;基质;阳离子剂;
- Keywords Polyaryletherketone;Cyclic oligomer;Degree of polmerization;Matrix _ assisted laser de_sorption ionization-time _ of _ flight mass spectrometry; 聚芳醚酮;环状低聚物;聚合度;基质辅助激光解吸电离飞行时间质谱;
- Keywords Matrix-assisted laser desorption ionization-time of flight mass spectrometry;cyclic oligomer polyarylethersulfone;molecular weight distribution; 基质辅助激光解吸电离飞行时间质谱;聚芳醚砜环状低聚物;分子量分布;
- cyclic oligomer 环状低聚物
- A cyclic code with minimum redundancy used to check errors in a set of characters. 一种用于检查一组字符的错误、并且具有最小冗余度的循环码。
- The unsaturated link occurs in a cyclic system. 在环体系中存在不饱和键。
- The steam-engine piston makes a cyclic motion. 蒸汽机活塞做往复运动。
- Shows how easy the cyclic graph is represented. 显示了循环图是多么容易表示。
- Repeat but use left cyclic instead of right cyclic. 重覆以上的动作,但是将副翼打左舵。
- Average cardiac cyclic variation of IB, ACVI. 心动周期平均变动量。
- Data error (cyclic redundancy check). 数据错误(循环冗余检查)。
- The object is no longer in cyclic motion. 这物体已不再循环运动。
