A kind of modified bismaleimide resin, with good processability, heat resistance, and impact strength was developed, using 4,4^′-dipropargyloxydiphenyl ether (DPEDPE), N-(4-propargyloxyphenyl)maleimide (4-PPM), and 3-ethynylphenyl maleimide (3-EPM) as modifiers. The DPEDPE, 4-PPM, and 3-EPM were synthesized and characterized by Fourier transform infrared spectroscopy (FTIR) and ¹H-nuclear magnetic resonance (¹H NMR), and used to modify the N,N^′-(4,4^′-diphenylmethane)bismaleimide (BDM)/2,2^′-diallyl bisphenol A (DABPA) resin system (BD) to obtain the different blend resin systems of DPEDPE-modified BD (BDD), 4-PPM-modified BD (BDP), and 3-EPM-modified BD (BDE). The curing temperature of BD resin increases with increase of the alkynyl-terminated modifier content. The processability of BD resin was improved with addition of the propargyloxy-terminated compounds. The temperature of 5% weight loss, residual yield at 800°C and glass transition temperature of the cured BD resin increase with increase of the alkynyl-terminated modifier content and can reach 443°C, 46.7% and higher than 380°C. The tensile strength of the cured BD resin decreases with increase of alkynyl-terminated modifier content. The impact strength of the cured BD resin increases with increase of the propargyloxy-terminated compound content and can increase by 65%. The tensile strength, elastic modulus, and impact strength of the cured BD resin blended with DPEDPE can be 73.7 MPa, 4.1 GPa, and 19.6 kJ m⁻², respectively. Moreover, the cured BD resin blended with DPEDPE has good water absorption resistance.

一类改性双马来酰亚胺树脂，具有良好的加工性，耐热性和冲击强度的开发，使用4,4 ^' -dipropargyloxydiphenyl醚（DPEDPE），ñ - （4-炔丙氧基）马来酰亚胺（4-PPM），和3-乙炔基苯基马来酰亚胺 (3-EPM) 作为改性剂。DPEDPE、4-PPM 和 3-EPM 被合成并通过傅里叶变换红外光谱 (FTIR) 和¹ H-核磁共振 ( ¹ H NMR)表征，并用于修饰N,N ^' -(4,4 ^' -二苯基甲烷)双马来酰亚胺(BDM)/2,2 ^'-二烯丙基双酚A（DABPA）树脂体系（BD）得到DPEDPE改性BD（BDD）、4-PPM改性BD（BDP）和3-EPM改性BD（BDE）的不同共混树脂体系。BD树脂的固化温度随着炔基改性剂含量的增加而增加。BD树脂的加工性能随着炔丙氧基封端化合物的加入而得到改善。固化后BD树脂的5%失重温度、800℃残余收率和玻璃化转变温度随着端炔基改性剂含量的增加而升高，可达443℃，46.7%，高于380℃。固化后的 BD 树脂的拉伸强度随着炔基封端改性剂含量的增加而降低。固化后的BD树脂的冲击强度随着炔丙氧基封端化合物含量的增加而增加，可增加65%。^-2，分别。此外，与DPEDPE共混的固化BD树脂具有良好的抗吸水性。