您要查找的是不是：
- The results revealed that the components with bicyclic ortho ester had expansibility in the ring opening polymerization by initiation of cationic compounds. 对膨胀聚合反应研究发现,带有膨胀基团双环原酸酯的材料在阳离子引发剂存在下开环时具有膨胀特性。
- Poly(adipic anhydride)(PAA) was synthesized by the ring opening polymerization of adipic anhydride(AA) initiated by allylmagnesium chloride in solution and in bulk. 以烯丙基氯化镁引发己二酸酐开环聚合制备功能化的聚己二酸酐。
- When the liquid formulation wre coated on optical substrate and exposed to UV irradiation, the initiators decomposed to cations intermediate and catalyzes the ring opening polymerization to form solid network. 配合适量之光起始剂，将液态树脂涂布于光透明基材上，经由uv照光可进行快速交联反应机制，形成固体聚合物。
- The cation ring opening polymerization of the monomer(ECH) is carried out by using a catalyst SnCl 4 to obtain the polyepichlorohydrin(PECH) prepolymer , with the prepolymer PECH reacting on NaN 3 in organic solvent DMSO. 用阳离子聚合合成端羟基聚环氧氯丙烷（PECH），然后采用大分子基团取代的方法，让PECH和NaN3在非质子极性溶剂DMSO中反应合成叠氮粘合剂GAP。
- The ring opening polymerization(ROP) of cyclic ester monomers in the presence of various initiator/catalyst systems is a main approach for the preparation of biodegradable aliphatic polyesters. 环酯单体在不同引发/催化体系作用下的开环聚合是制备可生物降解脂肪族聚酯的主要方法。
- The structural characteristics of copolymers were attested by IR, 1H-NMR, DSC, GPC, CD etc.The results show that products of NCA ring opening polymerization initiated by MPEG-NH2 are block copolymers. 利用IR、NMR、DSC等方法对共聚物结构进行了表征，同时利用圆二色光谱(CD)考察了聚合物材料在水溶液中的二级结构。
- Living ring opening polymerization 活性开环聚合
- Keywords Polyglycolic acid;Glycolide copolymers;Ring opening polymerization;Biodegradable polymer;Medical application; 聚羟基乙酸;乙交酯共聚物;开环聚合;生物降解材料;医学应用;
- It was found that the ring opening polymerizations of epoxide based monomers with THEIC can be carried out in a heterogeneous medium smoothly. 发现THEIC与环氧单体可在非均相体系中平稳地进行阳离子开环聚合反应。
- This paper introduces the developmentof PA- 6 hydrolytic loop- open polymerization pro- cess and detailed comparison is made among the processes of Zimmer,Karl Fischer,Inventa and Noy,as well as American Allied and Japanese Ube processes. 介绍了 PA- 6水解开环聚合生产工艺及其进展 ,将德国 Zim mer工艺、 Karl· Fis-cher工艺、瑞士 Inventa工艺、意大利 Noy工艺作了较详细的比较 ,同时介绍了美国 Al-lied公司、日本宇部兴产公司生产方法。
- Preparation of caprolactone with ring - opening polymerization 开环聚合制备聚己内酯
- Keywords PLA;lactide;catalyst system;ring opening polymerization; 聚乳酸;丙交酯;催化体系;开环聚合;
- She had the sapphire set in a gold ring. 她把那枚蓝宝石镶在金戒指上了。
- The diamond ring dazzled with brilliancy. 这只钻石戒指闪耀夺目。
- Microwave-Assisted Ring Opening Polymerization of Caprolactone and Lactide 己内酯和丙交酯的微波辅助开环聚合反应
- Keywords complex of metalloporphyrin;ring opening polymerization;epoxide; 金属卟啉络合体系;开环聚合;环氧化物;
- She wears a diamond ring on her left hand. 她左手上戴着一枚钻石戒指。
- Our family reunions are always three ring circus. 我家合家团聚的场面总是热闹非凡。
- I had to use force in opening the door. 我不得不用力开那一扇门。
- This little gadget's great for opening tins. 这小玩意儿开罐头挺好用。
