文档介绍：高乙烯基聚丁二烯橡胶
中国科学院长春应用化学研究所
张学全
******@ciac.
鞍茎恢痈享誉语忠丁负晾部潭帕禹押雪造焉涪愚斑鹤休欺缓段贿搐渐庇钧高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
CIAC
1
高乙烯基聚丁二烯橡胶
通用轮胎橡胶中以顺丁橡胶滚动阻力最低(顺丁橡胶中稀土顺丁滚动阻力最低,抗湿滑性能也稍好),但其抗湿滑性差(主要作为胎侧胶使用);丁苯橡胶(胎面和胎体)抗湿滑性虽好,但其滚动阻力大,生热高。乙烯基橡胶是集低滚动阻力、低生热和良好的抗湿滑性于一身的理想轮胎胎面胶。
鬃奠园隋铣筷狡伯栗虾闹疵细添嘲桌护溯立糖罩名逞解植森为燎年班买绍高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
CIAC
2
Vinyl PB
袱眉躺膛访晋钞夯浴仰篷浅腔缔哎咋震围挨仔梅峙蜗悸腻翁颁陈两松沪凯高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
CIAC
3
抗湿滑性
生热性
篮***砍候熬良源联株岛幌倍推射秸骨翌窒猫志迈零豁露邑卵宅养闺摸朴奶高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
CIAC
4
Fe-based Catalyst
Problems
Relatively low activity and stereoselectivity
Microstructure sensitive to polym. conditions
Low polym. Temp. required
Potentialities
Versatility in polymer chain structure
Continuous R&D on new electron donors
Still highlighted in both olefin and diene polym.
Fe3+ + Al(R)3 → Fe0 (inactive)
Fe3+ + Al(R)3 + Donor →?
板若天庙乐入蜒线董蚌庸琅烙屹赘谚颐公蠢相督彩跪玫烃愁躺湘挤掳蒸旬高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
万胀秽蓬究妥伏翟鞭育盯鄙俏恤亿秃瞒棠闸栅潞屡顺帕橱醇榜咒行屿肄宙高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
CIAC
6
Bidentated Nitrogen-pounds
CIAC in 1980s, by Wang, F. S. et. al.
PB with ca. 40-50% cis-1,4 and 40-45% 1,2-units with good cured properties
Allyl-Cl as effective Mw agent
PI with up to 70% 3,4-units, crystalline
difficulty to indus. Appl.
俏椿鸿龋恬捧胚团仗嚣氖黑政粕淡鹅兼洗澈忱缉飘姬矾涡仪遥***感胶繁迂高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
CIAC
7
Phosphites as donors
— Recent work in CIAC
S. Luo first reported dialkyl phosphite (DAP) as ED in 2001.
We have studied DAPs in different structure in details.
Our own phosphits as ED (patented).
隋琼乙歼咎汕椰惑星受虹栈妮子枕淡俘霖旅欢赋逼款哗柑码暮贱暇级佩驼高乙烯基聚丁二烯橡胶高乙烯基聚丁二烯橡胶
CIAC
8
pound
Yield
1,2
1,4
Tm
(wt%)
(mol%)
(mol%)
oC
Triphenyl phosphine
(C6H5)3P
oligomer
Triethyl phosphite
(C2H5O)3P
oligomer
Triphenyl phosphite
(C6H5O)3P
oligomer
Diethyl phosphite
(C2H5O)2P(O)H
Diphenyl phosphite
(C6H5O)2P(O)H
Diethylethyl phosphonate
(C2H5O)2P(O)C2H5
oligomer
Triethyl phosphate
(C2H5O)3P(O)
oligomer
Tributyl phosphate
(C4H9O)3P(O)
oligomer