Page 198 - 《精细化工》2023年第4期

g884g ㇫㏳ࡃጒ FINE CHEMICALS す 40 ࢤ

ͧ LA 㷘࠲㸦ౕ㏠ㆠㆿၽ͚喑ϻ㔹ᒏ᜽⮱ฺव➖̺
᭜ᮣҀ㐀Ჱ喑LA ⛁◦⊵๞́ВᬍჇᒏᒏᔮᚏᚏ॥
☚ [24] 喑䔈̭ₒ䄡ᬻγ XRD ⮱㐀᳉ȡ
2.8 pH ᄦ LA-Zein-MC ㏠ㆠㆿၽܳ᪐⋟⽠Ⴧᕔ⮱
ᒞ৺
㶕 3 ͧ LA-Zein-MC ㏠ㆠㆿၽౕ pH ͧ 2~8 ᬣ⮱
ㆿᒱহ PDIȡ

㶕 3 ̺ह pH ᄦ LA-Zein-MC ㏠ㆠㆿၽܳ᪐⋟ㆿᒱࣷ PDI

ఫ 8 LA হ LA-Zein-MC ㏠ㆠㆿၽ⮱ XRD 䅞ఫ ⮱ᒞ৺
Fig. 8 XRD patterns of LA and LA-Zein-MC nanoparticles Table 3 Effects of different pH on particle size and PDI of
LA-Zein-MC nanoparticles dispersions
⩞ఫ 8 ज㻮喑LA ౕ 2ș=25°ጓठᬣܧ⣝倅ᑧᏓȠ pH ㆿᒱ/nm PDI
ᅃ䨽⮱㵺ᄱም喑㶕ᬻ LA ВᮣҀᒏᐼႅౕȡ㔹 2 281.0±3.07 0.167±0.007
LA-Zein-MC ㏠ㆠㆿၽ⮱㵺ᄱምც́ᑧᏓᒵѻ喑Ꭳ́ 3 461.4±47.78 0.403±0.290
4 566.0±34.02 0.404±0.287
LA ౕ 2ș=25°ጓठ⮱㵺ᄱም⊵๞喑䔆ज㘪᭜ LA ̻
5 279.7±31.72 0.185±0.014
Zein ㏠ㆠㆿၽ͸䬡ࣾ⩌Ⱕο҉⩕喑Ҭ LA 㐀ᮣᏓ᭫
6 249.3±23.87 0.151±0.093
㦄䭺ѻ喑LA ᮣҀाᬍჇᒏ⟣ᔮ䒙अ喑LA ᜽ߌ㷲䒪
7 274.4±7.63 0.138±0.035
ݝγ Zein ㏠ㆠㆿၽ͚ [22] 喑ڣ㐀᳉̻ FTIR ⮱≸䄂㐀 8 292.8±3.41 0.147±0.029
᳉̭㜡ȡ䔆̻ᱻҠ⁐ [23] ⵁ⾣⮱⶘䚥Ꮃ๔䰶㉍㷲䒪ݝ
㻿㯸⮪ऻܧ⣝Ⱕᄦ䒰㑀⮱㵺ᄱም⮱㐀᳉̭㜡ȡ ⩞㶕 3 ज㻮喑ᒀ pH ⩞ 2 ෋ߍݝ 4 ᬣ喑LA-Zein-MC
2.7 DSC ܳᲽ ㏠ㆠㆿၽㆿ ᒱϻ (281.0±3.07) nm ෋ߍ ݝ (566.0±
ݖ⩕ጛ⹧ម᣼䛼☚∂䔈̭ₒᷭ≸ LAȠLA হ 34.02) nm喑䓫ݝᰭ๔ȡ䮼Ɑ pH ⮱㐔㐚෋ߍ喑ㆿᒱ
Zein ⮱➖⤳⌤व➖Вࣷ LA-Zein-MC ㏠ㆠㆿၽ⮱☚ ࣵ䭺ѻ喑ౕ pH=6 ᬣ䓫ݝᰭᄼ喑ͧ(249.3±23.87) nmȡ
ᕔ㘪喑㐀᳉ຯఫ 9 ᝭⹧ȡ 䔆᭜఍ͧ喑MC ぶ⩢◦ͧ 4.5 ጓठ喑Zein ぶ⩢◦ͧ
6.2 ጓठ [25] 喑ᒀ pH=6 ᬣ喑MC হ Zein ፓⰥࣺ⩢㢤喑
䕇䓴䲆⩢Ⱕο҉⩕হ⪼ⅡⰥο҉⩕॥ᑂҬₑᬣ⮱㏠
ㆠㆿၽㆿᒱᰭᄼ喑́ MC ᰶ䒰ສ⮱ΠࡃᕔহΠࡃ⽠
Ⴧᕔ喑Ҭ㏠ㆠㆿၽัλ㞜ສ⮱⽠Ⴧ⟣ᔮ⇎ᰶܧ⣝๔
ㆿၽ㖇䯳ȡѳౕ pH=3Ƞ4 ᬣ喑ㆿᒱܳݘͧ(461.4±47.78)
হ(566.0±34.02) nm喑PDI ౴>0.4ȡ䔆᭜఍ͧ喑MC
⮱ぶ⩢◦ͧ 4.5 ጓठ喑ᒀҀ㈨ pH ᣒ䓾ぶ⩢◦ᬣ喑
MC ⏣㼐Ꮣ䭺ѻ喑ϻ㔹ᄩ㜡ڣΠࡃᕔ⮱䭺ѻ喑MC ܧ
⣝㊛܊↶⋭喑䕍᜽㏠ㆠㆿၽ͸䬡ࣾ⩌ㆿၽ㖇䯳喑ϻ

㔹ᄩ㜡ㆿᒱ෋๔ȠPDI ෋๔ȡ
aÿLA喠bÿLA হ Zein ⮱➖⤳⌤व➖喠cÿLA-Zein-MC ㏠ㆠ ఫ 10 ͧ㏠ㆠㆿၽܳ᪐⋟ Zeta ⩢Ѻ䮼Ɑ pH ⮱अ
ㆿၽ
ࡃᗲۢȡ⩞ఫ 10 ज㻮喑䮼Ɑ pH ⮱෋ߍ喑Zeta ⩢Ѻ
ఫ 9 ̺हᵤ৮⮱ DSC ᰟ㏬
Fig. 9 DSC curves of different samples ⩞ₐअ䉌ȡᒀ pHō6 ᬣ喑㏠ㆠㆿၽܳ᪐⋟ͧ䉌⩢ᕔ喑
́ Zeta ⩢Ѻ㐊ᄦթ౴>30 mVȡ̭㝙䃑ͧ喑倅ܳၽ㖇
⩞ఫ 9 ज㻮喑ౕ 30~200 Ď㠰డڲ喑LA ౕ 69.2 Ď व➖чϔ⩌䒰๔⮱⾧䬡Ѻ䭨喑ᒀ㏠ㆠㆿၽ⮱ Zeta ⩢
ᬣܧ⣝ᅃ䨽⮱॥☚ም喑㶕ᬻ LA ᮣҀ⮱⛁㲺ȡ̻ LA Ѻ㐊ᄦթ>20 mV ᬣ喑䲆⩢᫒߈ᅞ䋠์ԊᠮҀ㈨⮱⽠
⮱ DSC ᰟ㏬Ⱕ℁喑LA হ Zein ⮱➖⤳⌤व➖ࣷ Ⴧ [26] ȡѳ pH ౕ 3~4 ͸䬡喑ₑᬣ㏠ㆠㆿၽ㶕䲏⩢㢤
LA-Zein-MC ㏠ㆠㆿၽ⮱ DSC ᰟ㏬䘪Ⱕᄦ䒰㑀ȡLA ᣒ䓾λ䰣喑ₑᬣҀ㈨䲋፥̺⽠Ⴧ喑㏠ㆠㆿၽ͸䬡䲆
হ Zein ⮱➖⤳⌤व➖ౕ 66.2 Ďᬣܧ⣝॥☚ም喑㔹 ⩢Ⱕο҉⩕߈㷘ⵡ౼喑ᄩ㜡㏠ㆠㆿၽ͸䬡ࣾ⩌㖇䯳喑
LA-Zein-MC ㏠ㆠㆿၽౕ 64.5 Ďܧ⣝॥☚ም喑ڣ☚ PDI ෋倅ȡ఍ₑ喑㏠ㆠㆿၽౕ pH=3~4 ⮱᲎У̸Ꮑ
≮℁ LA হ Zein ⮱➖⤳⌤व➖ᬻ᭫अᄼȡज㘪᭜఍ ⩕ज㘪ऄݝ䭽ݣȡ