PVP(K-30)�ĺϳɹ��

ժҪ ��N-��ϩ��ͪ(NVP)Ϊԭ��,ͨ��ˮ��Һ�оۺ��Ʊ��ҽҩ��ľ��ϩ��ͪPVP(K-30)��о��ת�Ƽ��¶ȵȶ�PVP��Է��Ͳ��庬��Ӱ��,��һ��ʺ��ʵ�ʵġ��º͵�PVP(K-30)��˺ϳɹ��·��:NVP��Ϊ40%,�ۺ��¶�Ϊ75��,��ΪA��B��,��m(A)/m(NVP)��m(B)/m(NVP)�ֱ�Ϊ0.02��0.01,V(��ת�Ƽ�D)/V(NVP��Һ)Ϊ0.02,�ϳɵ�PVP��Է��Ϊ29.8��

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�ؼ���� N-��ϩ��ͪ(NVP) ��ϩ��ͪ(PVP) ��

Abstract�� PVP(K-30) was prepared using N-vinylpyrrolidone(NVP) as raw material by solution polymerization.Effects of initiator,chain transfer agent and temperature on the K-value and residual N-vinylpyrrolidone concentration were investigated.The optimal technical conditions were as follows:concentration of NVP is 40%.Temperature of polymerization is(75 ��.) The initiator is composed of initiator A and B,m(A)/m(NVP)is 0.02 and m(B)/m(NVP) is 0.01.V(chain transfer agent D)/V(NVP monomer solution)is 0.02.The relative molecule mass(M) is 29.8.

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Received 2008-11-15; published 2008-11-15

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��;ŷ��˼�;�̷�;κ��Ƽ;.PVP(K-30)�ĺϳɹ��[J]. ��ѧ��ҵ�빤��, 2008,25(6): 527-529

YI Chang-qing~1,OUYANG Si-jie~2,CHENG Fa~2,WEI Yu-ping~2.Polymerization of PVP(K-30)[J]. Chemcial Industry and Engineering, 2008,25(6): 527-529