کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9562966 | 1382998 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characterization of liquid crystalline copolyesters containing horizontal and lateral rods in main chain (II)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and characterization of liquid crystalline copolyesters containing horizontal and lateral rods in main chain (II) Synthesis and characterization of liquid crystalline copolyesters containing horizontal and lateral rods in main chain (II)](/preview/png/9562966.png)
چکیده انگلیسی
A series of liquid crystalline copolyesters, possibly having auxetic behaviour, were designed and synthesized by solution polycondensation from 4,4â²-(decanoxy) dibenzoyl chloride with 2,5-bis(p-alkoxy benzoyloxy) hydroquinone and 4,4â²-dihydroxy-α,Ï-diphenoxydecane in different ratios. All the polymers have lower melting point ranging from 80 to 140 °C, which is beneficial to the liquid crystalline state formation and the thermoplastic processing. The lateral rods derived from 2,5-bis(p-alkoxy benzoyloxy) hydroquinone monomer gave an obvious influence on properties of the resulting polymers, in which the liquid crystalline state stability and the solubility in common organic solvents were enhanced. Observations from POM and DSC indicated that all the polymers are thermotropic liquid crystalline with nematic characteristics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 64, Issue 1, July 2005, Pages 35-46
Journal: Reactive and Functional Polymers - Volume 64, Issue 1, July 2005, Pages 35-46
نویسندگان
Yingliang Liu, Lan Zhang, Jun Shi, Shaokui Cao,