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- melt chain extension 熔融扩链
- The influence of melt polycondensation and solvent refluxing methods of lactide polymerization and chain extension agents on relative molecular weight of polylactide was studied. 研究了乳酸熔融缩聚和溶剂回流脱水缩聚两种聚合方法及几种扩链剂对乳酸聚合物相对分子质量的影响。
- Starting from lower molecular weight poly(D,L-lactic acid)(PDLLA) produced by direct melt polycondensation of D,L-lactic acid(D,L-LA),poly(lactic acid) drug delivery material was synthesized through diisocyanate chain extension. 以外消旋乳酸(D,L-LA)直接熔融聚合得到的低相对分子质量聚外消旋乳酸(PDLLA)为原料,通过二异氰酸酯扩链合成了聚乳酸类药物缓释材料。
- This agent is propene polyoxy-ethylene binary block polyether chain extension production initiated by polyamine and polyalcohol. 该药剂是以多胺、多元醇为起始剂的聚氧丙烯聚氧乙烯双嵌段聚醚的扩链产物。
- Polymeric thickener for latex can be prepared from waste polyacrylonitrile(PAN)via alkaline hydrolysis and chain extension. 以废腈纶为原料,经碱法水解反应和扩链反应制取乳液用高分子增稠剂。
- The optimum conditions in the reaction of chain extension were confirmed when the the PLA-PEG multiblock copolymers films had the best mechanical property. 确定了扩链过程中,多嵌段共聚物膜达到最佳力学性能的反应条件。
- The optimum conditions in the reaction of chain extension were determined to produce the PLA-PEG multiblock copolymers films with the best mechanical property. 确定了扩链过程中，多嵌段共聚物膜达到最佳力学性能的反应条件。
- The main polymerization methods for the synthesis of poly(lactic acid) include open-ring polymerization, direct bulk polycondensation, chain extension polymerization, etc. 合成聚乳酸的主要方法有开环聚合、直接缩聚合等。
- New silicone flame retardant potting compound was prepared by blending of LTV silicone rubber as base gum with diluent, crystalline quartz filler, chain extension agent, crosslinking agent, inhibitor, carbon black and platinum catalyst. 以中温硫化硅橡胶(以下简称LTV硅橡胶)为基胶，混入稀释剂、石英粉、链增长剂、交联剂、阻聚剂、炭黑及铂催化剂等组分，制得新型有机硅阻燃灌封料。
- Abstract: New silicone flame retardant potting compound was prepared by blending of LTV silicone rubber as base gum with diluent, crystalline quartz filler, chain extension agent, crosslinking agent, inhibitor, carbon black and platinum catalyst. 文摘:以中温硫化硅橡胶(以下简称LTV硅橡胶)为基胶，混入稀释剂、石英粉、链增长剂、交联剂、阻聚剂、炭黑及铂催化剂等组分，制得新型有机硅阻燃灌封料。
- Polyurethane coating having waterproof function and moisture permeation was synthesized by the pre-polymerization of mixed polyols from (PEA, PTMG and PPG) / PEG with MDI, followed by the chain extension with 1,4-butylene glycol. 以(PEA、PTMG、PPG)/PEG混合多元醇作为聚醚二醇组分与MDI进行预聚;然后用1;4-丁二醇扩链合成具有防水、透湿性的聚氨酯涂层剂.
- The sea seemed to melt into the sky at the horizon. 在水平线处，海洋似渐渐没入天际。
- All his support melt away when he really needed it. 在他真正需要支持时，却得不到一丝半点。
- At high pressure dry ice will melt. 高压下干冰会溶化。
- The action of salt on ice causes it to melt. 盐作用於冰而使其融化。
- Melt the butter and then blend in the flour. 先把黄油融化，然後加入面粉。
- He asked for an extension of his visa. 他申请延长签证有效期。
- These chocolates really melt in your mouth. 这些巧克力真正是入口即化。
- The chain has fallen foul of plants in the water. 链条已和水中的植物缠绕在了一起。
- She has a gold chain about her neck. 她在脖子的周围挂着一根金项链。
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海词词典，十七年品牌
