کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9562968 | 1382998 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of preparation and reaction mechanisms of new types of phosphonous acid-teminated oligostyrene
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
New types of phosphonous acid-terminated oligomers oligo-polystyrenylphosphonous acid (PSPA) were prepared by free radical reaction between styrene and hypophosphorous acid and characterized by IR, MS, GPC and terminal group analysis. The initiator had great influence upon the average molecular weights and structure of dominate product. The average molecular weights of PSPA I (AIBN as initiator) was obviously higher than that of PSPA II (BPO as initiator). MS data showed that there were three series of polystyrenyl compounds for PSPA I, five series for PSPA II. The main product was H-[CH(C6H5)CH2]n-PO2H2 for PSPA I and C6H5CO2-[CH2CH(C6H5)]n-PO2H2 or C6H5CO2-[CH(C6H5)CH2]n-PO2H2 for PSPA II. Different free radical reaction mechanisms with AIBN or BPO as initiator were proposed according to the results of MS, IR and fn analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 64, Issue 1, July 2005, Pages 55-62
Journal: Reactive and Functional Polymers - Volume 64, Issue 1, July 2005, Pages 55-62
نویسندگان
Yan Sui, Xiangkai Fu, Xuebing Ma, Jingrong Chen, Renquan Zeng,