一种新型马来酰亚胺的合成研究

研究了Ａｃ２Ｏ／Ｅｔ３Ｎ／ＮｉＳＯ４三元催化体系催化下Ｎ－己基马来酰亚胺的合成，考察了催化剂用量，反应温度，原料配比和反应时间对反应产率的影响，确定了最佳反应条件，所得Ｎ－己基马来酰亚胺产率达８４％，与传统酸催化法相比，该法具有反应条件温和，产率高等优点。     

松香马来酰亚胺聚酯合成

松香与马来酐反应加合物的产率为７９％。在ＤＭＦ中加合物与氨基苯甲酸反应的产物，Ｎ－羧苯基松香马来酰亚胺的产率大于９０．４％。在Ｈ＿３ＢＯ＿３－ＺｎＯ催化下３种松香马来酰亚胺聚酯的产率为８０％，８０％，７２％。ＴＧＡ测定表明，它们的ＯＮＳＥＴ温度超过４９０℃。应用试验表明，添加１５％松香马来酰亚胺聚酯，不但提高不饱和聚酯固化膜的热稳定性能．而且保持不饱和聚酯膜的气干性能。     

合成N—丁基马来酰亚胺的新方法

研究了新型的Ａｃ２Ｏ／Ｅｔ３Ｎ／ＮｉＳＯ４三元催化体系催化下Ｎ－丁基马来酰亚胺的合成。考察了催化剂用量,反应温度,原料配比及反应时间对反应收率的影响。确定了优惠反应条件。收率达８８％以上。与传统酸催化法相比,具有反应条件温度,收率高等优点。     

一种新型不对称马来酰亚胺单体的合成

以马来酸酐（ＭＡ）,Ｄ,Ｌ－氨基丙酸（Ａｌｎ）为原料合成了一种既含不对称碳原子又含官能团（羧基）的新型马来酰亚胺单体Ｎ－（异丙酸基）－马来酰亚胺（ＡＭＩ）。考察了溶剂、原料配比、催化剂用量、反应时间对产率的影响,确定了最佳反应条件。所得Ｎ－（Ｄ,Ｌ－异丙酸基）马来酰业胺的产率达５２％。并用ＰＥＲＫＩＮ－ＥＬＭＥＲＦＴＩＲ－１７１０红外光谱仪、ＰＥ－２４００有机元素分析仪对产品进行了检测。本实验具有     

N—（D,L—异丙酸基）—马来酰亚胺的合成

研究Ｎ－（Ｄ,Ｌ－异丙酸基）－马来酰胺酸闭环合成Ｎ－（Ｄ,－异丙酸基）－马来酰亚胺,考察了溶剂、催化剂用量、反应时间对产率的影响,同时也考察了混合剂对粗产物重结晶的影响,确定了最佳反应条件。所得Ｎ－（Ｄ,Ｌ－异丙酸基－）民来酰亚胺的产率达５２％。本实验具有产率高、溶剂容易回收、ＡＭＡ不需纯化等优点。     

合成N-丁基马来酰亚胺的新方法

研究了新型的Ａｃ２Ｏ／Ｅｔ３Ｎ／ＮｉＳＯ４三元催化体系催化下Ｎ 丁基马来酰亚胺的合成。考察了催化剂用量、反应温度、原料配比及反应时间对反应收率的影响。确定了优惠反应条件。收率达８８％以上。与传统酸催化法相比,具有反应条件温和、收率高等优点     

N—己基马来酰亚胺微乳液聚合动力学研究

配制了ＳＤＳ／ＮＨＭＩ／ Ｈ２Ｏ 三组分Ｏ／ Ｗ 微乳液，对其相行为进行了分析。用过硫酸钾引发该体系进行微乳液聚合，并对聚合动力学进行了研究。结果表明，Ｎ－ 己基马来酰亚胺的微乳液聚合动力学基本上符合常规乳液聚合中的Ｓｍｉｔｈ － Ｅｗａｒｔ 理论，但乳化剂对聚合的影响比较特殊。     

N—丁基马来酰亚胺的微乳液聚合研究：Ⅰ合成与表征

配制了ＳＤＳ／ＮＢＭＩ／Ｈ２Ｏ三组分Ｏ／Ｗ微乳液。以过硫酸钾为引发剂,首次用微乳液聚合法合成了聚Ｎ－丁基马来酰亚胺,并用ＩＲ、ＤＳＣ、ＴＧ等对聚合物进行了表征     

一种新型不对称马来酰亚胺单体的合成

以马来酸酐 (MA) ,D ,L 氨基丙酸 (Aln)为原料合成了一种既含不对称碳原子又含官能团 (羧基 )的新型马来酰亚胺单体N (异丙酸基 ) 马来酰亚胺 (AMI)。考察了溶剂、原料配比、催化剂用量、反应时间对产率的影响 ,确定了最佳反应条件。所得N (D ,L 异丙酸基 )马来酰亚胺的产率达 52 %。并用PERKIN ELMERFTIR 1 71 0红外光谱仪、PE 2 4 0 0有机元素分析仪对产品进行了检测。本实验具有产率高、溶剂易回收、AMA不需纯化等优点。     

N—（α—甲基—戊酯基—）马来酰亚胺树脂的合成与表征

以马来酸酐（MA）、D,L－氨基丙酸（Aln）、正戊醇为原料经三步二釜法合成既含不对称碳原子又含官能团（酯基）的新型马来酰亚胺单体N－（α-甲基－戊酯基－）马来酰亚胺（PAM）,并以AIBN为引发剂,用溶液聚合法合成了聚N－（α-甲基－戊酯基－）马来酰亚胺,并用IR、TG、DSC对聚合物进行了表征。     

Photocrosslinking of a maleimide functionalized polymethacrylate

A polymethacrylate bearing pendent maleimide (MI) groups has been crosslinked by UV irradiation of the photoinitiator‐free functionalized polymer. The reaction was followed in situ by real‐time IR spectroscopy and shown to proceed with an initial quantum yield of two maleimide double bonds polymerized per photon absorbed, the value expected for a photocycloaddition mechanism. A twofold increase of the reaction rate was achieved by performing the UV irradiation in the presence of a thioxanthone photosensitizer (1 wt%). Insolubilization of the photoresist requires the reaction of at least 18 MI double bonds per polymer chain, thus implying the occurrence of an intramolecular coupling process between neighbouring MI groups located on the same polymer chain. In the presence of an electron donor monomer, like the divinylether of triethyleneglycol used, the cycloaddition reaction gives way to a radical‐induced copolymerization of maleimide and vinyl ether double bonds, which becomes the only crosslinking process in a stoichiometric mixture of the two components. Copyright © 2003 Society of Chemical Industry     

减压共沸法合成N-苯基马来酰亚胺

以顺酐和苯胺为原料,合成N-苯基马来酰亚胺.在乙酐法和共沸脱水法的基础上,开发了一条新工艺,减压共沸法合成N-苯基马来酰亚胺.该法以磷酸为催化剂,得到收率＞85%,纯度＞95%的N-苯基马来酰亚胺.     

Functional group selective polymerization of (4-maleimidophenyl)oxirane as a new type of bifunctional monomer

A novel bifunctional monomer, (4-maleimidophenyl)oxirane (MAPO), with very reactive maleimido and epoxy groups, was prepared through the selective oxidation of the two carbon–carbon double bonds of N-(4-vinylphenyl)maleimide. Either of the two different polymerizable groups (vinylene of the maleimide moiety and the mono-substituted epoxide) of MAPO was able to be selectively polymerized by choosing the polymerization method. For radical polymerization, MAPO gave poly{p-[1,2-(epoxyethyl)phenyl]maleimide} (PEPM) with dense pendent epoxy groups in 76% yield without cross-linking. MAPO also gave poly(maleimidostyrene oxide) (PMSO) with dense pendent maleimido groups through cationic polymerization in 60% yield. On the other hand, anionic polymerization with an of MAPO produced only insoluble gel-like materials due to unselective polymerization of the two polymerizable groups (Scheme 1). The vinylene group of the maleimide moiety in PMSO easily reacted with the mercapto group, and the ring-opening reaction of the epoxy groups in PEPM with amino groups took place.     

N-苯基马来酰亚胺的合成

以苯胺和顺丁烯二酸酐为原料，采用两步法合成N-苯基马来酰亚胺，确定了最佳反应条件。分析各因素对产品收率的影响，并对产品相关物理性质进行了测定。N-苯基马来酰亚胺收率92％以上。     

N—（4—羟基苯基）马来酰亚胺的合成研究

以顺丁烯二酸酐(MA)、对氨基苯酚(4-AP)为原料,一步法合成了N-(4-羟基苯基)马来酰亚胺(4-HPM)。本文研究了原料配比、反应时间和催化剂用量等因素对产率的影响,并对产物物理性能进行了研究。     

基于CPD模型的低阶煤催化解聚过程模拟分析

低阶煤催化解聚过程定量分析和放大需要合理描述该过程的宏观动力学模型,使用化学渗透脱挥发分（CPD）模型结合陕西长焰煤的催化解聚实验,对低阶煤催化解聚过程进行了定量分析。综合对催化剂作用机理的认识,结合催化解聚实验结果确定相应表观动力学参数,所得模拟结果与实验结果趋势一致、吻合良好,其较好地体现了不同热解过程差异,低温下催化解聚产物释放量较少,温度升高后产物量才会高于原煤热解。模型中催化剂对焦油产率的影响体现在复合速率常数、交联反应活化能上,随两者增大,焦油产率均增加;Fe基催化剂有助于促进侧链断裂,提高气体产率,Zn基催化剂可抑制交联反应,但交联反应活化能较大时,受热解温度限制,焦油量增加变缓。     

Fixation on Wool of Dyes Containing a Maleimide Group

The chemistry of dyes containing a maleimide group is discussed. The mechanism of dye fixation on wool in depths greater than 1. 5% has been investigated. In samples which were dyed at pH 3, 80°C, little covalent reaction took place. Extraction with solvents, used to determine the fixation ratio, caused changes in the dye, as well as some further reaction, giving rise to apparently high fixation ratios. Dyeings on nylon fibre confirmed that covalent reaction of dye with amino groups is possible, especially between pH4 and 5. The best results in terms of fixation and yield were obtained in a dyeing procedure where the pHwas raised slowly during the dyeing.